Update:
I mistakably uploaded a the box with a name on it. I have updated the file and uploaded a blank one.

I designed this for my daughter with her name on it. I left the box part blank for a design or name that you desire. I made 2 versions of the lid, one with an outlined design and a non-outlined design. Print the lid where the decorative part faces the build plate. I printed it with 6 perimeter walls, 20% gyroid infill (since I want it to be sturdy), 50mm/s print speed.

If you like my design, a coffee tip would be nice. :)

Creality

Ender 3 Pro

0.2

10-20% You decide :)