An acorn that opens up to show a secret compartment.
It prints in 3 parts. The top piece is tight-fit assembled and the bottom part has a thread to screw them together.
It has a small loop on top so you can put it on your christmas tree or around your neck.
Give it to someone you love and hide a message in it...
Altogether, it fits in a ~30mm cube...
Made using TinkerCAD : https://tinkercad.com/users/3UY440sFG01-tart2000
Ideal for geocaching!