bigmike.it

Nikon D5000
f/20 - 1 Second Exposure - ISO800 - Focal Length 42mm - Max apeture 4.8

Flash on the Left set to 1/16
Sound Sensor on the right @ 12cm from POI

Unfortunately, the point of contact on the surface is out of the Lens View.

In this shot it's not easy to understand that the cards are flying, but I like the original idea!