Ball Pythons are geared towards eating rodents. The area that they're native to has at least 20 different species of rodent. Did you mean you don't want to feed rodents? Or just mice in particular? They'll also eat rats, African soft furred rats (ASF's), Gerbils, Hamsters (rather expensive for these last two) or many other types of rodent. And Frozen/Thawed rodents are always a good option if you just don't wish to feed live. Just make sure you heat the prey item up first so they can sense it with their heat pits.