Darwin's Journey - Museum-Cover

I printed the insert from Dukesavard for Darwin's Journey. https://www.thingiverse.com/thing:6402451. Thank you for that nice insert.
But I faced the problem, that the museum display is not secured for shaking the box and the tiles would fall out.

This cover prevents this. The model itself is rather simple. The nice looking was done in the slicer. Don't know if other slicers work similar. With Bambu Studio I added a modifier to the object and with the modifier I reduced top and bottom layers to zero in the area where the modifier is. With a nice infill-pattern this looks great.

The only problem I had, was the edge on top, where my printer produced some strings. But it works anyhow. If there is interest I can remodel the top edge to a smaller size, so that the overhang is smaller.