As I was reading through this post about the Stardust Mission I decided to try and find what mission I had sent my name in to so many years ago. I couldn't find it, but I did find something else that is much cooler! They are currently taking names for the OSIRIS-REx trip to the asteroid Bennu.
NASA's OSIRIS-REx mission and The Planetary Society invite you to submit your name for a round-trip ride to asteroid Bennu. Your name will hitch a ride to the asteroid, spend 500 days there, and return in the Sample Return Capsule to Earth in 2023.
Apparently you have until September sometime to get your name on it. So, if you're interested, you can sign up here.*
*Jinxe is not responsible if aliens capture the OSIRIS-REx and decide to track down every name on this list to probe or destroy them. As there does not appear to be a sample on this spacecraft you likely won't be mind controlled by said Aliens and forced to stand on a ledge during the Christmas season, but she can also not guarantee that this won't happen. If it does happen, though, the Doctor will probably save us all.**
**Jinxe doesn't guarantee that the doctor will save us all, he is rather busy after all.