For this years company christmas party at hpc we handed a plushed toy to every customer that visited us, which was a donation for the St Anna Child Cancer Research Center

We had a Panda, a Sheep and a Rabbit. We tagged the animals with a barcode and for every animal we handed out we added one to the virtual playground on our multitouch table. Our visitors could search their animals using a barcode scanner. When a barcode was scanned the image was centered around the animal and it was paused for some seconds.

I made a short video and posted a simplified version of the application that runs as an applet on my blog

http://www.local-guru.net/blog/2011/11/26/Processing-Multitouch-Swarm-Application