Software that is awesome with the Wiimote

I was teaching a small group of students the basics of Google Sketchup earlier in the week and (of course) used the Wiimote whiteboard as my key teaching technology. This great piece of 3D graphics software is absolutely perfect when used with an interactive board. My students were designing a new mailbox for the school and the ability to create digital 3D models let them experiment with design features and quickly start refining their initial ideas. Check it out at http://sketchup.google.com/

What do you do with the thing?

Many people like the idea of getting a bit of "interactivity" into their classrooms via the wiimote project and a 3pi pen. But just as many people ask for more ideas to enhance the interactivity once the system is all up and running.
Here goes a wonderful music website that not only will help you with a bit of interactivity but also give you and your class a dash of creativity. All made better with your wiimote system.
Try out http://www.jamstudio.com/Studio/index.htm and give your music lessons a lift. This is a great site for beginners and experienced musicians alike.
This site even lets you write music in the style of your favourite musician; from Fergie to U2, Eric Clapton to Lenny Kravitz!
Go on, knock yourself out!