Four vouchers for museum entrance, Harn Homestead Museum Family Pass- Family of 4 pass admission to museum. On time 10% discount at gift shop. Expires one year from the date issued and cannot be used for Harn Homestead special events. National Cowboy & Western Heritage Museum Tickets - 4 Complimentary tickets to the National Cowboy and Western Heritage Museum. 2 Tickets to the OKC Museum of Art. You're going to be standing in the Hall of Fame with 6 Tickets to the Gaylord-Pickens Museum. 4 passes to the OKC Science Museum of Oklahoma.