I've decided that at the Proof Q&A, I will in some way disburse a sealed pack of playing cards for Camp Lemma (Proof School's excellent math camp for grades 4-8; attendees might know some mathy children who'd enjoy). The cards feature illustrations of the Camp Lemma mascot animals (Frogs, Raccoons, Owls, Narwhals, Turtles).

I have not yet decided how I will disburse these cards at the event, but it will probably reward knowledge of Proofnik Manifold markets. I will also attempt to make it fair.

General policy for my markets: In the rare event of a conflict between my resolution criteria and the agreed-upon common-sense spirit of the market, I may resolve it according to the market's spirit or N/A, probably after discussion.