Possible surface would be diffraction grating for added confusion.
-- sartep, Jul 30 2003

Klein Bottle jigsaw http://www.kleinbot...om/jigsawpuzzle.htm
A 3-D immersion of one, anyway. [Tabbyclaw, Oct 04 2004, last modified Oct 05 2004]

Nice, but how does it stay together?
-- snarfyguy, Jul 30 2003


Thick foam puzzle shapes.
-- sartep, Jul 30 2003


And custard.
-- DeathNinja, Jul 30 2003


Yes, custard plays a big roll here at the halfbakery. Ok, I'll stop with the puns.
-- sartep, Jul 30 2003


You should have gone for the more challenging Klien Bottle jigsaw.
-- Detly, Jul 30 2003


Kewl
-- RayfordSteele, Jul 30 2003


Oh yes, the Klein bottle is a very good idea. My next jigsaw will be even more challenging.
-- sartep, Jul 30 2003


Might want to use a bandsaw blade.
-- thumbwax, Jul 31 2003


Doing an idea search and find this gem.
-- 2 fries shy of a happy meal, Jan 31 2005



random, halfbakery