These two thimbles are made of pewter and are available from spacecamp.com for $4.95 each, plus S/H. The one to the left is for the U.S. Space and Rocket Center (USSRC) and the one to the right is for NASA (If you can't tell left from right, it's the one with NASA on it).
Space Camp is, well, a camp about space (outer, not personal). There a several different programs, including the Space, Aviation, and Robotics Tracks for 9 to 11 year-olds and 12 to 14 year olds, parent-child programs, Adult programs, and Corporate programs, which seems way cooler than having the local cheerleading coach come to your workplace breakroom and teach everyone group handclapping for thirty minutes, which is what happened at my work. Teambuilding, my Aunt Fannie!