Although I don’t have a Mac (and BasiliskII refuses to work on my computer), there are plenty of Macintosh goodies available at the Mac Hut
This is pretty neat — it is for Macintoshes and uses the accelerometer* to make the desktop “fall down”!
Despite it being called a “virus”, it’s actually just a harmless gag.
Tech Support: Hello?
Customer: My desktop just collapsed!
Tech Support: …..
* The accelerometer is only MacBook Pro, I think. It shuts down the hard drive when the computer falls, to prevent damage.