You know the stuff we perfoming musicians can acquire: product and even T-shirts, hats, etc... keychains & bottle openers from brewery and distillery reps... fridge magnets, flashing light look-at-me buttons for the bar crowd... shot glasses or beer mugs... cheap plastic bead necklaces from bar-hopping bridal parties... free drink tokens from competing pubs... guitar picks... demo and commercial release CDs from fellow musicians... gobirons and tin whistles... contacts and business cards... gallons and gallons of free shots and beers...
Half my present collection of T-shirts came from reps and promo groups. When the rest of the guys in the bar are drooling over the Bacardi girls or the Malibu girls, we saunter up and demand merchandise "for the house band" so we can wear it on stage. Last year's Bacardi cap gets tossed in the garbage for this year's Mount Gay cap (because it's worth more to wanna-be yacht racers in the nautical bar down the road; wave it high and collect from the highest bidder).
So what kind of stuff have you acquired? What should the rest of us be looking out for? Any stuff you've gotten that you wish you hadn't? What's your ugliest promo t-shirt or hat? (Mine was from a little badly-organized Celtic festival I played at last summer).