My 8 year old is convinced she's trained her hamster to sit and stay.
I have a vid of Kes playing with a boxer called Max but can't get on youtube right now to access it.
Picking up Kes' food order in an hour, been delivered to a friends house. I'm quite excited as there's tons of new things for her to try including lambs head, pigs head, lamsb legs, lamb ribs, fish mince, beef shanks, turkey necks.
You can probably train a hamster to do things on cue, especially with a clicker or something similar. You can clicker train pretty much any animal, they even use the method for lots of special needs kids these days.
Get some bull pizzle. They love it!