How about a rabbit? that runs away from the mouse? And a deer that does the same thing! And for both the cursor could be turned into a human! And a cat and a dog and a lizard and a spider and a ladybug and a bee and a parrot or a Scarlet Macaw or something. And a polar bear...
just about evry1 loves hamsters you could have a cage and you can see him play in his cage on desktop you could take him out by clicking on his cage when he would come out you could interact with him and feed him (but you wouldent haft to feed him ever) and customize the color i bet you would get alot of thank you and a five star
How about making a Humming Bird or some furniture like a real desk to put widgets like the weather globe, picture frame or plant and you could even have drawers in it that store folders like Jared Atkinson's Sort It widget for desktop.