I bought an x10 wireless video camera
and modified it to run from a 9 volt battery.
I mounted it securely to a balsa-wood
frame (left) and tied on 28 helium balloons
(right). I attached a long kite-string and let
it go. I plugged the receiver into the
"video-in" jack on my camcorder (below left)
and record the pictures that it sends.