I don't know if I've shared many of them here yet. If not, please enjoy this selection of sketch cards that were drawn for Kickstarter backers and convention attendees. The bottom pic shows the front of the sketch cards, along with the new magnets.
By the way, the gold and copper markers died out pretty quickly, so all newly-drawn cards only get silver for highlights. Also, there are several more cards that never got photographed. Gotta preserve some mystery!