SM64 Mario
SM64 Luigi (which is Mario with green cap & shirt, darker blue
overalls, and edited textures by GlitchMaster7 (YouTube))
SM64 Evil Santa (Mario with white hair and green overalls)
LM64 Mario (My custom made realistic texture hack of Mario
for my YouTube videos. LM64 stands for Luigi's Mansion 64)
LM64 Luigi (Same as SM64 Luigi except the textures are mine)
LM64 Evil Santa (Same with LM64 Mario's textures)
LM64 Ray (A black and white Mario who is the Bros's cousin)
LM64 Shadow Mario (A dark blue Mario with red and black eyes and
a few other changes)
LM64 Wario (Custom color code with custom textures by me)
SM64 2 BR Mario (Mario with his textures for my major SM64 hack called
Super Mario 64 2 Bowser's Revenge)
SM64 2 BR Luigi (Luigi with his textures for my major SM64 hack called
Super Mario 64 2 Bowser's Revenge)

Dr. Mario has three different outfits, they're more than just different
recolors. Each outfit was modeled based off their respective models,
and the recolors use colors from their respective model's recolors.

Mr. M and recolors are self-explanitory, made him to rival Mr. L

MarioGame2222 (A Popular YouTuber's color code who is retired now)
supermarioglitchy4 (A really popular YouTuber who has used a bunch
of my custom Super Mario 64 Levels in his videos)
StupidMarioBros1Fan (My YouTube self who has no cap, a gamerheadset,
glasses because I have those in real life, lighter shades of Mario's
normal colorscheme, and LM64 Mario's textures)
MarioMario761 (Another retired popular YouTuber's color code)
dshyanie (One of my oldest fans, he is a YouTuber)
Banjokaz777 (He's one of my biggest fans, if not the biggest, and
is a YouTuber)
Starman3 (A popular YouTuber)
Markiplier (An extremely popular YouTuber, made this for videos
I plan on making but decided to include in the download)
Markiplier (Warfstache) (Markiplier's alter ego, he has a pink
mustache and different personality, otherwise he looks the same)
MegaMan765 (One of the older SM64 Machinimators, currently doing
SFM videos)
Banjokaz777 (Another one of my big fans, has different textures)
russmars2 (A YouTuber and a member of the forums, he's made some
awesome hacks ranging from Ocarina of Time imports, SM64 imports
and model imports here on the vault)

The following are YouTubers who asked to have their color codes
included, if you have a color code you want include but can't make,
let me know.
Axtran
Daniel Nguyen 
EeveeGamer123
Goldmario5
PsychicPheonix64
roberttoot123
SunSpiritGaming
Superjay543
wurmi32

Don't worry I'll be updating with more and more YouTubers.

How to use the Template texture
Take a picture of Mario using whatever color code you want (or use
random colors), then use the darkest part of the color in the dark
green section, and the lightest part in the green section.
Next blur the image, best if using Gimp's Blur tool and is set up
to the biggest size and then move the mouse around to blur the image.
You should get a similar texture to the others. The beauty of this is
that you can have a solid color or an inverted one, and Mario will
have no shading/backwards shading ingame because the model actually
has no shading in game and the texture is just normalized so it
rotates with the camera to make his "shading," almost exactly like
how Mario's shading worked in the actual game, just in that game it
was polygon coloring, which we can actually change the color, but it's
easier, and more effective/n00b-friendly to just use a texture.