homemade synth challenge ???

[Toby Paddock]

Bonus points for soldering with the circuit powered.
Ungrounded soldering iron tip might be a good idea, though.
30 minutes... 555, photocell, maybe a little speaker in a 
cardboard tube thing for a filter... 
 - -- -  Toby Paddock

Harry Bissell wrote:
>Wow... the build your own synth in 30 minutes CHALLENGE !!!
>What are the rules?
>Can you design the circuit outside of the 30 minute limit...
>Can you order parts ???
>Like sit down at the bench, soldering iron in hand 
>(already warmed up... scopes on...)
>and wack out a synth in 30 minutes ???