Micro Air Vehicles
Offwhite98 writes "Over at The Gainesville Sun they are running an article about really small planes used to watch all kinds of stuff. I am sure the common applications for these devices are pretty clear, but if you could use these for a lot of fun. Use 10 of them as flying candid cameras at a wedding or a party and you I am sure you will get interesting results." A little bigger than the Spy Fly but probably much more robust.
http://autopilot.sourceforge.net/
-- http://www.swcp.com/~hudson/