A Honeycomb Coaster. This coaster comes in 2 variants. One with a hollow bottom, and one with a solid bottom. The print can be sliced to allow for a color change on the top 2 mm of each model. Each coaster takes approximately 3 hours to print, though you might be able to optimize that by slicing differently.

You can find another variation with a Bee in the middle here: [https://www.printables.com/model/561861-bee-honeycomb-coaster](https://www.printables.com/model/561861-bee-honeycomb-coaster)