Tardis Coaster Holder

I had these awesome coasters that I got from a nerd subscription box a few years ago and today I decided that they needed a fancy home when they aren't being used. I used the marvelous tardis by Gossamer that are hollow which helps save filament. Mine was printed with .2 layer height and 11% infill but you can really do whatever you want and it'd probably turn out fine.

Original tardis:
https://www.thingiverse.com/thing:13109