Just print the boxes and put in your Penrose tiles
The box capacity is 10 tiles by default. But the design is parametric. Just open the Freecad file and change the QTY parameter in the Parameters spreedsheet. Chose the number of tiles you want to store. Then generate the STL for the new part. Print!
Juan Gonzalez-Gomez (Obijuan) I am a researcher on robotics, but I define myself as a hacker. I really believe on the opensource spirit of sharing information