It was by happy accident that I discovered the carromical properties of the Dollars to Doughnuts fold.
Look at the face of it. You have a 16-gon with creases going to every fifth corner – it describes the mystical decahexagram. Well, not so mystical, maybe, but wicked good at distributing stress. You whack this thing, it compresses and expands with not inconsiderable resilience. Hell, it’s an endless Roman arch with tensegritous tendencies – of course, it’s going to bounce. Most bodacious plink.
It also has stupid fresh part two skitter. Its contact with the table is pretty much just the edges of the 16-gon – the creases on the face slope inwards a bit and this gives it a sort of air-hockey lift. You flick one of these babies and it flies. When it hits another one, you get vector physics with a vengeance.
Carroms! You could play carroms with these on a bar for beer. Or re-invent the British game of shovegroat. Shovebuck for brewski. I see all kinds of possibilities. The MIT boys will be all over this one.