|This hamster is, in fact invisible. He runs on his wheel, jostles his food around looking for those premo pellets, and tussles around in his bedding.
I have great fun showing him to the neighborhood kids. The best part is when I open the cage, carefully remove the hamster, and hand him him over to be held. The kids'll stand there, gingerly cradling the invisible hamster in their hands and I you can just see the thoughts flying through thier minds... "Is this guy for real?... am I REALLY holding an invisible hamster in my hands?"
I once "dropped" the invisible hamster while handing him over to a group of kids to hold... and one little girl leaped up onto a bench. Maybe that hamster was real and maybe it wasn't, but she wasn't going to take any chances. Smart kid, really.