This is one of Mars Celtic designs, and I think it shows how good he is at the knotwork and maze patterns when you see them on these sandstone disks. This can be used as an altar tile (it is cork backed to protect your furniture) and heat safe, as well as useful as a coaster. 
 
We designed these to be either sold as a single, for an altar tile, or as a set of 4 to use as coasters. Nice, heavy sandstone tiles with cork back. I use one of the pentacle ones as my coaster in our living room and when I got red wine on it, it washed right away without a trace. 
 
We make these on demand, here in our studio. So no delay waiting for off site printing. 😊
 
Makes a wonderful gift for a Witch's new home too!
 
Arachne's Web got a Yule gift for ourselves at the end of 2022: we got our own press and printing equiment to make our own mugs and other decor items from our art work here, in our own studio! That means no delayed ship times! We get an order, we print it and ship it out! Same great quality and no delay!