http://www.youtube.com/watch?v=OiwChpthPugOK-- I know how he did it-- putting the projector under the table and the wiimote above it, but what is he using on his finger? Is it a DIY (do it yourself) device or are the fingertip IR devices you can purchase?
I work with children with special needs, and they all love to drum on their desks during class. A program like this could really help to channel their love of music and their rhythmic skills!
Any information that you can provide would be greatly appreciated.