I saw that thread, but (a) not sure if they're still on sale, and where they'd be; (b) wouldn't really be feasible to buy $10 cards for all of the undergrads on the hike, who may or may not use them in the future; (c) looking for things that'll make a more immediate impact to get at least one return visit to Davis (and hopefully get them hooked), like little samples of the bread at When Pigs Fly or coupons for one free ice cream cone from JP Licks.