My one sister's husband is a big Star Wars fan - his book collection is measured in linear feet! We had his name in our family gift exchange, so I dug up a file for some coasters that I think I got from Shane. I cut/engraved 4 of those on my K40 and then designed a 3D printed holder to complete the set. To make the 3D model, I started with a decent resolution top-down silhouette that I found online. I brought this into Lightburn (laser software) and used the trace command to convert this to a vector. That step could have been done in Inkscape to stick with free software, but I already have a license for Lightburn and I like how its trace function works. I exported this as a DXF file and brought that into Fusion 360. I scaled it appropriately and then extruded it up to the right height. A few circles extruded made the pocket for the coasters, the access slots on the sides and the hole in the bottom. I printed the holder using Atomic Marble PLA filament on my Graber/Prusa i3 which took about 5 hours start to finish. I was very happy with how it turned out - picture/STL file below.