The General Motors Heritage Museum offers an opportunity for collectors interested in acquiring authorized reproductions of classic dealership signs. These authentic-looking, neon-lit copies are reduced to a smaller scale than the original versions so that they can be displayed inside garages, offices or rec rooms. Available on a strictly limited basis (between 25 and 200 copies each, depending on the design) are signs promoting Cadillac, Chevrolet, Buick, Oldsmobile, Pontiac and GMC Trucks. All are hand-made using quality commercial-grade materials and weigh about 50 pounds each. Prices range from $3,500 to $20,000, depending on the sign, and can be ordered from www.gmphotostore.com.