I give mine popcorn sometimes but only a little bit. They're easy to break apart into hamster-sized servings. You might want to be careful with diabetes-prone hamsters but given the small amount you'd be giving and the fact that popped corn is mostly air I can't see it being a huge problem as long as they don't get it too often. Heck, even my chinchillas love popcorn! They are prone to diabetes but Pippa loves it so much she'll grab the rim of the bowl with her hands and wrestle it away from me to get her piece
