I am working on redoing the pixels for my site completely - there will only be a set that'll be reused, but I also want to do marking templates that people can use, and color swatches.
My site is made of rats, so all of the markings/colors are real rat markings.
The templates look like this:
Showing a "capped" marking.
Showing the shading used for the base and the shading used for the markings.
So for the colors, it's just finding the existing colors online, then matching up colors for shading.
For markings, it's carefully finding the "breed standard" and then doing the markings more carefully. They need to be the perfect breed standard, and they need to be done over all templates. (note, there 13 different poses, but for some, they'll need to be redone for the dumbo earred ones, or where the fur is drawn different or something)
I can offer artist or premium accounts on the site, beta testing, all my credits on here, etc, etc. Writing, art, pixel art in return ,whatever you'd like.