These are PDF and DXF files of the sticker template for the Spiral Fracture puzzle, available from Pitcher Puzzle's shop.
David, Great job with the twisty puzzles!! Did you know that a spiral fracture is a particularly nasty and painful way to break a bone? Hopefully your puzzle is friendlier than that!
Hopefully my puzzle won't cause quite that much pain, but it is particularly nasty and challenging to solve!
I get the theme now, I see also "Compound Fracture". Nice stuff, looking forward to "Compression Fracture"??