I was at Stack Exchange HQ earlier for the Reinvent 311 hackathon, and I got to meet some pretty cool people and got some neat swag. I noticed that while there were pens and permanent markers with the Stack Exchange insignia, there weren't any dry-erase markers! I thought it was odd, because, after all, programmers use dry-erase markers at least as often as pens.
I think it would be a cool thing for you to have, even to help the Stack Exchange developers who lose their own markers in their offices.
This is just a suggestion, but I'm posting it here because I told Jarrod that I would. Thanks for a great event and a fun night.