I am new to 3D printing and wanted a project for my first newly purchased Prusa MK4 after printing the provided examples.  My wife started sewing recently and she wanted a small box for storing her sewing bobbins.  I used SketchUp Free to build the model from scratch.  I printed two boxes with pretty good result.  I first thought that the box would need a latch but in the end it stays close as the cover fits tightly to the base.

I don't know if it is normal or not but you need to work the lid and the base carefully to loosen the hinges.  After that the hinges work well.  I don't know if I left enough clearance or not.