Choir Rose Window Cup Coaster
This cup coaster is designed to be used by itself with no additional pieces. However, you could use in conjunction with a napkin, cork, or felt underneath if you want to maximize moisture absorbtion.
The design is based off of gothic architecture rose windows. I have 7 other designs to choose from as well:
https://www.shapeways.com/product/QSLQP5YF7
https://www.shapeways.com/product/L45FZB92T
https://www.shapeways.com/product/GWCYF9EUF
https://www.shapeways.com/product/ZHEUAR7JB
https://www.shapeways.com/product/VPFBRBN6H
https://www.shapeways.com/product/BQ6TXQWWQ
https://www.shapeways.com/product/Y874NEJSE
Short coaster holder (holds 8 of this coaster):
https://www.shapeways.com/product/U8XRQCZWN
Tall coaster holder (holds 16 of this coaster):
https://www.shapeways.com/product/UPW8ECM8G