Album Coaster Holder

This is a holder for a set of coasters that I bought from Amazon for $5 shipped (I have no relation with that seller and there are other similar coasters that would probably work with this design). I used a transparent blue filament with my Monoprice Select Mini and I think it turned out fantastic, although the STL does need to be rotated so the flat bottom is down. If anyone would like to make it hold thicker or larger coasters just let me know and I can upload the SolidWorks file (or change th