Mug coasters shaped like buttons with a holder inspired by pins used for sewing. I made these for my mother who loves to sew and drink tea. :)

The holder fits up to six coasters.

All pieces prints separately so no AMS is needed. I haven't glued on the pin heads since they fit very securely on their own but you can use a drop pf glue to secure them even more if you want to be sure they won't come of when you take a coaster.