Customizable Slot and Some Suggestions
There is an open slot at the top of the rocket for a quarter dollar coin, but there is no coin included. This available space is intended for some customization of the piece. A nice proof quarter from a birth year or your state would be appropriate. Another suggestion touching on the space theme, would be to include the 2000 Maryland ATB Quarter or the 2004 Florida ATB Quarter. The Florida Quarter pictures a Space Shuttle and was also sent into space on the New Horizons interstellar space probe, along with the Maryland Quarter. These are the only two U.S. Quarter Dollar designs to travel outside of the Solar System. The New Horizons probe was intended to fly by Pluto when it was still classified as a planet, among other objectives.
Another coin that might stoke the fires of youngster’s imaginations would be the 1909 VDB Lincoln Cent. Not only is it the more affordable Philadelphia Mint struck sister to the famous 1909-S VDB, but an example of that coin was included on the Mars rover Curiosity back in 2011, to aid in camera calibration after landing.