After seeing one of those pens that shocks you, I thought about putting something like that into a mouse as a joke. But mixing computers and high voltage is not such a good idea. The idea of using a vibrating motor from an old pager came to mind. So with an old pager, a mouse and a little hacking my vibrating mouse was made.
A Shook-Up Mouse
Want to turn your mouse into a cool practical joke? Make this vibrating mouse and have some fun with your friends or co-workers.