This is a sixteen sided Iris opening box based off of the Fujimoto cube. I got the crease pattern (CP) here. This was a really interesting challenge because of all of the models I have done so far, this model requires the most accuracy in setting the creases, ALL of the creases, before you actually collapse the model. What I mean to say is, if you want something worth looking at, you had better precrease the whole CP carefully. I used a ruler and the sharp end of a nail file to lay in the creases accurately.
It is a fairly easy model, if a little time consuming. I highly recommend folding it if you want a reasonably sturdy cube-esque container. I used the Foil Tissue paper from Origami Shop, you can check it out here.