www.cafepress.com (search tandem bike)
Great collection of T-shirts, drink ware
/mugs, home décor, signs, aprons, lots of fun stuff
www.zazzle.com/tandem+bicycle+gifts
T-shirts, ties, tote bags, embroidered
pullover
www.bicyclegifts.com , www.bikegifts.net , www.bicycle-gifts.com
Tandem products, vintage posters,
jewelry, note cards, (search tandem bike)
www.thefind.com (search tandem bike)
Big variety of unique tandem bicycle things
links to other sites