Coffin's Half Hour Cube
Description
This is Stewart T. Coffin's Puzzle Cube titled "Half Hour". It is a good puzzle for those of us who run out of patience with burr puzzles.
Instructions
Print one of each piece or you can print the plate of all 6 pieces.
License
Coffin's Half Hour Cube by mikeq is licensed under the Attribution - Non-Commercial - Creative Commons license.

Cool! I did one in plain filament and colored it with sharpies and it looks great.