Seek, and ye shall find

Three years ago, I planned a funky day-long scavenger hunt for shadesong's birthday weekend extravaganza, but it fell through on account of miserable weather, general tiredness and other factors. I'm realizing that now that I'm in a town that, y'know, doesn't actively suck, I can actually do this thing any time I want.

So! Y'all in the Boston area! If I were to plan a scavenger hunt for some weekend when the weather gets a tad warmer (and with the knowledge that there's already an annual hunt in the area), would you be willing to participate? Also, as a scavenger hunt is no bleeding fun without Valuable Prizes, do you have something that you'd be willing to donate in that regard? (The hunt will involve teams of three or four, so Prizes will need to be at least in triplicate.)