Today I learned about Artist Trading Cards. They are 2.5 “ x 3.5 ” (64 mm × 89 mm) in size, and apparently people trade them around the world. There are also in-person swap events that you can attend in person. It started in 1997 by M. Vanci Stirnemann, a Swiss artist, who created 1200 cards by hand as part of an exhibit.
Kris
@Alligator