Dale Gardner

Dale Gardner holds up a For Sale sign, STS-51-A, November 14, 1984 Probably the best sight gag ever staged in orbit. Gardner and Joe Allen had just retrieved two communications satellites, Palapa B2 and Westar 6, left stranded when their upper-stage motors failed, and the sign advertised the salvaged goods. It remains a showcase for what spacewalkers could do: two lost satellites recovered from orbit in a single flight.