When I was little, I had a set of connecting plastic peices, but I can't find them. They were squares & triangles that connected along the edges. You could build things with them, because they just snapped together & apart. They were brightly colored, and they would hinge where they connected, so you could make moving parts. I thought they were called Zacks, but I can't find them at all! Does anyone remember them?
I believe the correct spelling is "Zaks" so that should help in your search. :)