I was very surprised when I first saw this design. I was expecting a simple four piece assembly, much like Stewart Coffin’s Octahedral Cluster or 4 Piece Pyramid. It would be relatively easy to take apart and difficult to reassemble because of the confusing shape of the pieces. However, it takes a few moves to take this apart as well. And finding the first move can test your skills as well. I made these a bit larger to get as much gluing surface as possible. I was trying to avoid reinforcing all of the different joints which would increase the costs significantly. Needless to say, rough handling of the pieces should be avoided.