You haven't seen Spongebob Alkogolik? You haven't lived my friend! I'm also glad to seen the Spongebob Decal making a return. As for the design. Outstanding. Great style and design choices from the face to the feet. I hope you are going to pose him.
You could get away with just making the decals/Spongebob/numbers in a texture sheet with an opacity map in the Alpha channel to mask out the details. (This mask could then be plugged into the Alpha of a LERP, while your first and second textures go into the A and B nodes.) You'd then be able to just make a UV island in…