I fed Goblin, my adult male Bp, a hamster once. The local pet store had a nasty male hammy that was biting every kid who picked him up, and they gave the hamster to me for free when I bought a few rats. I whacked it just like I'd whack a rat, since I did not want it biting my snake. I tossed it in, and Gob ate it just like he'd eat anything. I would not feed them too often though, cuz hamsters seem to be more fatty.