Art Biscuits
Various square art-oriented designs.
These are some various art-oriented designs I've created. I thought about calling them "art coasters" but using them as such might be detrimental to their longevity.

The origin was starting with the card template I had, but in a bid to make it easier to be symmetrical and fill space I reduced the size.

They kind of remind me of TV test patterns, something you don't really see anymore with the advent of 24-hour television and cable. The ones with the triangle ring I've been told look Greek.