A lovely coaster for us coffee lovers. As my other coasters it has a very common diameter of 100mm and a height of 3mm. 

In my example I've used black PLA for the background and Gold Silk Filament for the motive. Feel free to color it to your likes. If you go into the objects tab you can also pick different colors for the separate elements of it. 

My tests with PLA went absolutely fine so far due to it's thickness and 100% infill, but if you plan to use it with super hot cups PETG or other filaments with a higher melting temperature might be an even better choice.

I've created a whole set with 8 Coaster and 1 Holder which creates a nice set. You can find it in my coaster collection .