LEGO themed coasters

I made these LEGO themed coasters with swappable bases. The top part is actually a giant 12 x 12 round LEGO tile that is compatible with real LEGO bricks. The bottom has anti-studs and fit over the base nicely. All the dimensions are in accordance with standard LEGO system.

The hole in the center of the base is a 4 x 4 round plate size. 

Themes included are: 

LEGO logo

LEGO classic space logo

LEGO Monkie Kid logo

LEGO Minifigure head with classic smile