Remixed to make the snowflake flush with the top of the coaster.
Load either the 3mf file, or the two stl files. The 3mf has been set for sparse layers (to reduce the size of the filament purge block), 15% gyroid infill. The purge block has been moved to the side to not collide with the coaster when doing sparse purges.
The author remixed this model.