Science fair suggestions

[Arthur Pemberton]

I wil soon be involved in a science fair. I hope to display a home made 
cantenna (a wifi antenna made from a can - mine is for 802.11b). I have 
that part down and working, but I'm hoping to do soemthing cool with the 
p2p network that would be created with the two cantennas facing each 
other. Any ideas on how I can use Fedora/linux to do something 
interestign that high schoolers would apperciate? Last time i attempted 
i did video conferencing, but with Windows. For wat ever reasons the 
quality was poor, i'm hopinmg for suggestions on something different 
that i could show case.

Thanks in advance.