Holly did this art for a very small unschoolers' gathering several years ago. I just came across it and put it in a better place. The name came from Adam Daniel (documented here), the concept of a zia-based ace was mine, but the artistry and execution were all Holly Dodd's!
A little more about the small series of meet-ups:
Albuquerque Chat and Explore
Albuquerque, and The Ace Festival (notes about the name, and connections made because of it)
3rd Learn Nothing Day winding down (Holly's t-shirt, like Adam's t-shirt)