Control over 52 pieces of cardboard.
[video=youtube;ShZeNukEEoA]http://www.youtube.com/watch?v=ShZeNukEEoA&feature=c4-overview-vl&list=PLdNxgqAtUsM62MzdBZusIHn1YPSqWw5jH[/video]
[video=youtube;ShZeNukEEoA]http://www.youtube.com/watch?v=ShZeNukEEoA&feature=c4-overview-vl&list=PLdNxgqAtUsM62MzdBZusIHn1YPSqWw5jH[/video]