My nephew is a big fan of SK Slavia Prague, so we created a coaster together as an exercise in 3D modelling and printing.
You can also use the 0 top layers trick to print so you can see the infill. I don't use it in the current version, although it's practical, it doesn't look that nice on this model.
The logo of SK Slavia Praha belongs to SK Slavia Praha & eSports.cz, s.r.o. & JT Design. This 3D model is not intended for commercial use. Source of logo: https://cs.wikipedia.org/wiki/Soubor:SK_Slavia_Praha_full_logo.svg
If you want something simpler, check out my other model: