A server where you can customize almost anything, including pets that you can buy, heads, hats, bodies, shields, weapons, furniture, houses, etc. But the server is based off of that, so you are allowed to do it for free. All of these would have to be approved, though so nothing inappropriate or racist is added. The graphic has to be made by the person from scratch, or else they are charged a bit for uploading a small edit or recolor. The level has to be made with the server's tileset. And for things such as swords, there is a basic template that you have to stay inside the lines of. And as for pets, you could choose how the face looks, size of pet, color, added things such as spots, etc.