One for the Specialist Colleges we support - Koosh Generator, a little online program, could be fun for cause and effect and encouraging upper body range of motion at the same time on a touch screen or interactive whiteboard.

Try it out for yourself at http://www.donhopkins.com/openlaszlo/my-apps/kooshballs.lzx?debug=false&lzr=swf7.

And the one I made earlier...