Mid kid treasure box

**Mid kid's treasure box** (150x150x100 mm) with 12 x 12 mm bolts and nuts and a 19 mm wrench.

Kids can use it to store other toys or other treasure in secure way and have fun with the nuts. Wall thickness has been minimized to 1.8mm ( 3 x 0.6). Box has been derived from my big box https://www.thingiverse.com/thing:2990378

All parts have been designed with coarser thread and bigger tolerances as regular mechanical components since it is a toy.

There is two versions
* one with Voronoi holes ornaments
* one solid, you can add whatever ornament you like