I made a sculpt of a Ninja turtle and then used normals bump mapping on the low poly version of it. I made it so the texture maps are interchangeable so that one model can be any one of the four turtles by swapping out maps. I based it mostly off an old playmate toy I still have but wrd also had lots of great photos.
Accessories all share a texture map, this includes the turtles belt and weapons.
If you use credit me.