Made the for a friend.
Print 2 times and you can build a Tetraeder thing or many more to play and get many different forms.
I added holes form 8x3 mm round magnets, right orientation they should lock in the Tetraeder form
And on version with out the holes, ok the holes are in but covered by 0.64 mm (2 layers)
nice if you manage to stop the print and insert them in the right orientation :)