A nifty box inspired by Sean Martell's mozlove avatar. It uses a pair of magnets to snap shut. You could choose either the embossed mozilla for the top, or print the letters in another color and glue them to the top using the peg holes as guides.

You can get the OpenSCAD sources from this github repo.

Here is a video of the hinge and magnet mechanism.

Update May 6th: Uploaded new STL files with smoother surfaces.

Print out the bottom and chosen top. Use a pair of 5mm magnetic cubes (I used Cube Mighties) , and glue them into the square holes.

If you chose the pegs top lid, you will have grooves for which to fit the mozilla logo letters in. Use glue for that too!