I just found out a new way to torture the cat.
Put the fitted strechy cornered sheet (i know it has a special name) over the cat, thus trapping it between your sheets and the mattress. Watching it try to get out looks like a worm crawling under your skin. Hilarious!
Any version of "dizzy kitty" is fun; putting the cat in a paper bag and spinning it, or on a spinning chair, then chasing it all over the house.
Putting balls of tape on it's paws while it does the jitterbug.
Putting a sock over it's head, making it look like a star wars character, as it blindly tries to navigate by your laughter.
Holding the cat just slightly above the ground so it can almost touch the floor is another good one.