Ive been a little slack with keeping this blog up to date, so i will try and fill you in what ive been up to this week. I headed in to Jaycar to pick up what I needed - LEDs of various colours, Transistors, some resistors and about half a dozen photocell resistors. Unfortunately Jaycar only had 3 of the photocells I was after at the time, So that would have to do for now. I then pulled out my trusty breadboard and started experimenting, after a few hours of tinkering I got a fairly well working prototype. When you covered one of the photocells with your finger, the corresponding LEDs turned on. However the amount of LEDs and resistors i was using appeared too much for my 9V battery, and so when more than 2 LEDs were illuminated at the same time, their brightness diminished severely.
I did a few experiments using various household objects as diffusers for the LED, didn't really achieve any spectacular results unfortunately. 
Then I saw the Smart LEDs link on the 312 cass blog which game me heaps of ideas. Such as using the hot glue gun stick as a simple diffuser for the LED, and using the piezo to control the light, rather than the photocell, which I can then integrate with the Ardunio to create some really nice effects.
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