Don't forget your passport, kids!
Link - Kids can record their visits to museums, zoos and parks all over the country as well as collect cool - and FREE - souvenirs with the new TripKid Souvenir Stamp Program. Simply present a notebook or one of the program's spiffy souvenir passports at any of the 188 participating zoos, museums, resorts and parks, and receive a free sticker stamp, each one unique to the location. The passport looks like a real passport and neatly houses the collection. It's $5 and can be purchased at many of the participating destinations.