3D Printy came up recently with a great Print-in-Place Twisty Puzzle Box
https://www.printables.com/model/345982-print-in-place-twisty-puzzle-box
I thought it could be fun to use this puzzle as a topper for 3D print Twist Lock Present boxes.
https://www.printables.com/model/89174-twist-lock-present/remixes
I remixed the gear of the internal mechanism of the Twist Lock Present box so it could be open by the key of the Print-in-Place Twisty Puzzle Box.
I redesign a case (simple version for now) to use it as a topper of this gift box in such a way the box could only be opened once you solve this Print-in-Place Twisty Puzzle to access the mechanism to open the gift box with the same key as the puzzle.
You could use this puzzle topper on any of 3D Printy gift boxes.
If you want to really challenge your friends when you offer them a gift, you could put this gift in a puzzle within a gift box with this puzzle topper so you have 2 puzzles to solve before getting to the gift (my favorite option is to use the simple version to open the box and a difficult version within the box).
UPDATE v2 - February 2023
I did both the simple and complex versions of the Print in place puzzle.
I added a simple sketch of both solutions in case you need it.
To improve the look I added a version with “Open Me !” on the cylinder.
I also did 2 specific keys to open the puzzle which looks and could be used combined with using the Xmas Tree case and my Remix of the Moai case. These are stronger keys but will come with 2 pieces.
Xmas Tree : https://www.printables.com/model/366558-gift-box-for-3d-printy-print-in-place-twisty-puzzl
Moai : https://www.printables.com/model/348734-moai-case-for-print-in-place-twisty-puzzle-box-3d-
You could use these puzzle toppers with all the boxes I did for 3D Printy puzzles :
To open the box you will have to solve the puzzle, remove the internal mechanism, insert the key in the cover and turn to open the box.
The author remixed this model.