Cashonaut
A cashed up person who pays to be sent into space to partake in space related activities.
These 'Cashonauts' have paid extreme amounts of cash to be rocketed up in to orbit above the earth, yet they have not been selected through regular means of recruitment as seen with various international nations where potential astronauts go through years of evaluation, testing and vigorous training prior to being especially selected for space missions, these people have paid for the privilege to be once of the few to use private funding to be sent into space.