No endorsements here, but apparently you can hack Facebook now.  Some offerings:

• Facebook Autologin - automatically logs you in to Facebook (ever notice that no matter what you do facebook prompts you?)
• Facebook age displayer - displays the age of the profile you’re veiwing thus negating any need for math!
• Random image generator
  - I did not test this one, but in theory it should work. It
  automatically changes the picture ID number in URL to generate a random
  picture.
• Make Facebook Green - this script make facebook green. If you know HTML change the hexadecimal number in the js file to make other colors.

Link: http://www.collegev2.com/?p=42