This is a container to hold up to four coasters. My mother requested this print to hold her coasters in the living room. The coasters shown in the picture are about 12 x 12 x 7 mm, and the container was designed with some 'wiggle' room.

I designed this in Fusion 360, and the component file is provided if you need to make any dimension changes.

It took about 10 hours to print on my Ender 3 v2 Neo with 30% infill.