SMBPO

The small mind bending plastic object.

This is a basic six piece puzzle made from one type of part.

It would appear not to able to be assembled but you can.....

This puzzle came from this page.

http://www.johnrausch.com/PuzzlingWorld/chap10d.htm

If you would like to bake your noodle further have a browse through the whole book:

http://www.johnrausch.com/PuzzlingWorld/default.htm

It has a significant number of puzzles, many of which could be made on a 3d printer and or a laser cutter.

I dare all thingizens to transmogrify a puzzle or three into the thingiverse.