Summary

Per Cymon's suggestion (comments, parent work), split each in half (was that the correct half to cut?) leaving four identical parts, not just two.

Instructions

Print and play!

Quoting LeftAngle's parent work: "The idea is to make the 2 pieces into a pyramid. It can be done, but it's not as easy as you might think. A great ice breaker."

I'll add that it's fun to find the right arrangement but not exactly stable in that arrangement, unless you have a little channel to permit it to stand on edge. So I've made such a thing. An equilateral triangle base would work too, but I like the drama of the higher center of gravity.

Split Pyramid