Actually you can re-map the universe with these instructions

Maybe you have read and seen this fascinating video and thought, "Hmm... I want to do this myself".

Well, now you can.

Alessandro masserdotti from Tinker.it has posted his instructions on how to build the "Multitouch table".
Using Plexiglas, LED's and what not, they recreated this technique.

So, follow his instructions and try it for yourself!