This guy has created a banana that automatically changes to whatever colour the current Department of Homeland Security threat level is (Yellow at this moment).
http://www.victorisdead.com/luna/comments.php?id=200

http://www.dhs.gov/dhspublic/display?theme=29

Soon you could be watching pictures as you listen to the FM radio built in to your Nokia handset
http://news.bbc.co.uk/2/hi/technology/3472901.stm

Sorry if its a bit old... still good
http://members.cox.net/clyqz/macs.html