This is a 3rd order Gosper snowflake on a disk. I added a filament change half way through to transition from silver to gold. My Prusa mini prints this pretty quickly. The relief on the snowflake won't allow the coaster to stick to a glass due to suction. The coaster also looks festive on your tree.

https://www.inventables.com/projects/gosper-snowflake-coaster-ornament