UPDATED WITH STOCK ICONS AND NEW TEXTURES AND HD AND I KNOW WHAT IM DOING THIS TIME ----------
The heroic Marth dons his hood and scarf to hide away for a moment's time. From the shadows, he strikes (read: fsmashes).
Comes with portraits, should work fine online. Made with P:M in mind, and goes over white marth by default.

ITS OVER 9- It's Falco, wearing Vegeta's armor that he was first seen on Earth clothed in. No bones were added or altered, built for competitive visibility and viability. Goes over Orange/Yellow Brawl Falco by default. Comes with CSP's and junk.
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(It's over 9000)
Cheers!

EDIT: Added render to previews / / Thanks Ledge!

Hey blah blah, Project M blah. No bones changed or altered, good for competitive play. Comes with CSPs and junk, goes over yellow by default. P-Diddy joke etc etc. Also when you throw your cap, your hood is glued to it which is hilarious but doesn't distract from actual gameplay at any point.

It's Fox, wearing Goku's gi that he received from King Kai. No bones were added or altered, built for competitive visibility and viability. Goes over Red Brawl Fox by default. Comes with CSP's and junk.

8/6/2016: Updated with new shaders and new recolors. The Bullcap and Safari hats come with all six Brawl colors, in addition to the Zombie costume and the new Frozen costume.

WAAAAH! It's Wario, with four outfits from Wario Land! Try out some different hats! Try being undead! Try not to enjoy this magnificent mod! All models go over classic slots.

http://smashboards.com/threads/the-smash-3c-project.383581/

Pikachu's been getting into his closet again, coming out with lots of new hats! This includes the PM alts the Smash 3 team didn't do, all the Brawl hats, and six new and unique hats! Every costume has been updated with the new shaders, of course but just look! It's Detective Pikachu for god sakes!

http://smashboards.com/threads/the-smash-3c-project-pm-alternate-costumes-more.383581/

Like father like son or whatever. He has shiny aviators, slightly darker green clothes, a different pattern on his shirt, and his StarFox Command yellow scarf alongside his StarFox 64 darker fur. Won't desync anything, should be different enough hue to fight alongside Project M's melee Fox without confusion. Comes with CSPs, goes over Green Brawl Fox by default. Cheers.

Thanks for all the downloads and the frontpage and the support on facebook and stuff guys, without you all, I may not have gotten this far :D
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Hey blah blah, Project M blah. No bones changed or altered, good for competitive play. Comes with CSPs and the new stock icon stuff, goes over blue by default. A lot of custom stuff in this one, and most of the familiar sheik textures were actually redone. Cheers, guys! Expect more from me soon!

My very first (though not first uploaded) vertex hack. It is a Poo-inspired costume made with Project M in mind. Comes with CSS + Other portraits. Should operate fine on (P:M) Wi-Fi, but untested.
(Goes over bumblebee by default)

Inspired by his referee garb from the NES classic Punchout, this costume was made with Project M in mind. It should be wifi safe on P:M, no bones were touched or added, still unchecked though. Includes CSS+Other portraits. (Goes over brown by default)

UPDATE: Alternate CSPs added, render viewable in imgur link (screenshots are deprecated however)

EDIT : added render / thanks ledge

Made with PM in mind, Ness received some sleepgear, but nothing serious yet. Now he has something to tread around in the colder months with! Goes over Fuel (White + Red) by default, comes with CSPs and junk. No bones were added or altered, should work fine online. Designed inspired by Kino no Tabi, a manga series that I read once many years ago and had since forgot about, until now.

Based on Luigi's artwork from Smash 64. Remember when he was tall green-mario? I miss tallgreenmario...Goes over Fire Luigi by default. May greenmario forever be in your favor. - UPDATE : Reduced width of Luigi's face by 10%. Looks far closer to his older depictions on N64. Click on the thumbnail to show new screenshots.

Wario dons his pirate costume from Mario Party 2! I loved that game as a kid, and today it's still my favorite installment in the series. I'm surprised that the costume motif hasn't returned to the series yet... Oh well. Comes with portraits, by default goes over white-colored classic Wario. Designed with P:M in mind, no bones were added or shifted, and thusly this skin should not desync (P:M) wi-fi.

Made with competitive play in mind, it's Metaknight wearing the armor of his homeland. There weren't knights in Japan... but there were Samurai! Goes over white by default, comes with CSPs and junk. No bones were altered or added, should be fine for online, and should read well for Project M's fast paced action.

Dixie Kong had added bones, and I don't feel safe playing in P:M tourneys with altered bone characters, so I plopped some assets onto Diddy as both a joke and an opportunity for a tourney legal alt costume. It started as a joke someone made. Includes CSPs + Other portraits. Due to the bones being left unaltered, it should be fine (in P:M) online.

Another entry based on a classic game from my childhood. I don't care who says someone is or isn't Mario, Nintendo was all about the mustachioed plumber for years before they even had the technology to make something 16 bit. Made with Project M in mind, the files may seem a little mis-labelled, but they are set to replace green Mario in PM. Comes with multiple portraits. Should not desync wi-fi as bones were left unaltered.

(I recognize that he should be a bit more red, feel free to make him more red. I purposefully chose orange to match a bit more of real life construction work, and also my old CRT made Mario look orange when I was a kid :) )

Based on Mario's artwork from Smash 64. In order to match the silhouette for Brawl's skeleton, his proportions couldn't really fit the more iconic stubby style, but there have been tweaks to virtually every single vertice on the entire model. He blinks too! Goes over Brown Mario by default (Brown in Project M, they removed yellow and that might've fudged things for Brawl a little)

based on his artwork from 64, I've been working on this non-stop for days and I know there are still problems, I assure anyone reading this that he'll be cleaned up eventually. I really just need to move on or I'll go insane. Comes with portraits and junk, looks fine while actually fighting. goes over dark brawl
EDIT: The screenshots are from a previous iteration of the model, the wristguard on his left arm has been re-rigged to properly fit to his arm and also it has been retextured to actually look like a leather guard.

Made with Project M in mind. Based on Pikachu's focus band outfit that appears in Smash 4. Comes with portraits, and goes over green by default. (Sorry green team! Green pikachu looks like he's ill anyway D: ) Didn't change any bones or anything, so should work fine online.

A maskless Metaknight skin made with P:M and general competitive play in mind. Bones weren't shifted, and nothing too distracting was added. Fits in one slot (pink MK by default), and should work online. The design is based partially on the Brawl design mixed with the maskless design shown in Nightmare in Dreamland. Comes with portraits.
*edit - in-game images aren't explicitly required to be larger than displayed, simply displayed period.

Link is back from... the past... something.. I dunno, but he brought his magic sack, cape, power gauntlets (now power-hand-guards), tempered sword, and hero's shield or whatever! Also wearing the red tunic and pegasus boots, it's just a smorgasbord of equipment. I wonder where he keeps the bombs...

Designed with PM in mind, it shouldn't change the silhouette of Link too much, and also no bones were added or altered so he should play identically to how he previously did. Should work online as well. Goes over purple by default, comes with css and junk P:

\"It's your move~ I've made up my mind... Time is running out!\"
Inspired by Vektroid's Macintosh Plus album (link at the bottom). Includes the famous Helios bust as well as a few other references.
Goes over Project M's Wario Ware. Not sure if it works over regular Brawl, I think it should? Nothing was changed about the stage composition, merely visuals were altered.
Comes with stage select icons and labels, image, etc.
Vektroids MAC+ Album:
beerontherug.bandcamp.com/album/floral-shoppe

Based on DK's artwork from Smash 64 (was the art doodled by Sakurai? Most of it honestly looks like his...) it's Smash 64 DK remixed. He was originally going to be cell shaded but that was too distracting of an effect. It's actually re-rigged from scratch and it fits over his skeleton legally incase someone actually allows this cartoon in a tournament setting (haha). Comes with CSPs and junk, goes over red DK by default. You can check out my remixed original 64 artwork if you make the jump too. Cheers. Also, he's a lifeless doll who doesn't blink. In 64 they were dolls, but here I just am not sure yet how I want to code in the pain expressions P: also I had a version with a mobile jaw, but it was actually super creepy.

Requested. It's just the P:M base pink Squirtle with Jigglypuff's flower. Comes with portraits. Should be fine online, no bones were added. Cheers to ledgerewskie for the original-matching portrait.

Normally I'm not really into recolors, but the color that PPMD used at the invitational was a particularly unique palette, so I wanted to recreate it for use in Brawl/P:M. Comes with portraits. (goes over black brawl fox by default)