Anthill Inside Magnet or Coaster

I'm an avid fan of the Discworld books and have always loved Hex, the Unseen University's thinking engine. I call my printer "Termite" as a nod to the best 3D printers in the natural world, and so the pun that has tickled me throughout reading his books has now come to life. It's 63x73x2mm, and I stuck a magnetic sheet on the back using superglue. I have it on my fridge and on the back of my printer. My version is printed with White PLA and Matte Blue PLA, and print