NASA Kennedy Space Center's Spaceport USA Pewter Bell Astronaut 3 1/2" Souvenir The NASA Kennedy Space Center's Spaceport USA Pewter Bell Astronaut is a 3 1/2" souvenir that captures the spirit of the NASA program. This collectible item features an astronaut design, making it a unique and meaningful piece for those interested in space travel and exploration. Made of pewter, this bell souvenir is a lasting memento of the iconic space agency and its missions.