Here’ s a little clippy-thingy that people can use to build things out of… playing cards.
So it’s a building toy, but doesn’t actually provide the building material at all, but rather just a plastic bag of thingies that conform to and leverage existing building pieces, each of standard size and stress/strain properties that can be found lying around anywhere in the world.
What next?!?!
Longshot City 
January 13, 2012 at 4:17 pm
See also “box rivets”: http://www.mrmcgroovys.com/