The Devil's Half Doven
Each of the seven sticks has one dovetail tab attached along its length, and one dovetail notch cut across it. Your goal is to assemble the pieces with every tab fitted into a notch. Two of the four solutions will balance nicely on the end of one stick.
The Devil's Half Doven
Seven pieces, 0.75 by 2.75 inches, 3d-printed PLA
Difficulty: (Challenging)
$20 each
For those wanting a somewhat lighter challenge than The Devil's Half Doven, this five-stick version has just two solutions: can you find them both?
The Devil's Mini Doven
Five pieces, 0.75 by 2.75 inches, 3d-printed PLA
Difficulty: (Tricky)
$15 each