The other day I printed the polyhedra from my last MathWorks blog post. The compounds of five tetrahedra look pretty nice in clear resin.
Those are only about an inch across. That’s the “Laevo” form on the left, and the “Dextro” form on the right. The idea was to turn them into a pair of earrings, but Chris thinks they might be a bit to spikey for that job.
I also used the shape in a post for the Formlabs blog yesterday.