Button-O-Matic is a project of the Busy Beaver Button Co, which was started in 1995 by Christen Carter. Button-O-Matic has featured curated annual art exhibits (on buttons, aka pinbacks, sold from toy capsule-style vending machines) by a wide variety of artists since 2002. Some of the artists are quite impressive, including Chris Ware, Tim Biskup and Mark Mothersbaugh.
Currently, we don’t know a whole lot more about Button-O-Matic, but we’d love to! To paraphrase Wikipedia, this is just a stub. If you have further information about Button-O-Matic, please share it with us!