hoe do i make a custom skin also does anyone have a rainbow jar i could have?

If you want to make a custom skin, you can either download the official bases that are available or you can create your own base as long as it does not violate any of the rules. Angel has also made a helpful skin colouring tutorial here. Check it out. :)

By the way, look this thread up for different programs you could use to make your own custom skins.

thanks but i tryed a bunch of things its not working

What do you mean by "its not working"? Are you trying to make a custom skin, put one onto a pet, or both? Please be specific and I'd be happy to clarify for you :)