Ever wanted to go to Mars but lack the time/money/proper training? Well,you can send your name instead. NASA offers you the opportunity to include your name on a microchip on the Mars Science Laboratory rover heading to Mars in 2011 for free. Just provide your name and location on the registration page. You'll also be able to print out a certificate of participation after you register.
http://mars9.jpl.nasa.gov/msl/participate/sendyourname/index.cfm