Childhood dreams fade. When he was a teenager, Ricky Walker’s parents sold the Ralston Rocket he won to a carnival. It nearly became a traveling museum for real space artifacts, but was finally thought to be scrapped. Meanwhile, the Michigan State Fair continued using the Silvercup Rocket until 1962, when organizers replaced it with a replica of John Glenn’s Mercury capsule. Rechristened Space Ship Mars, the battered spacecraft later amused travelers as a roadside attraction in Sault Ste. Marie, Michigan.