Framing (poplar) ~ $40
PVC Pipe w/sockets ~ $20
9 Lasers 50mW, green ~ $225
1 Arduino Uno ~ $30
9 50K photo-resistors ~ $5
9 5K resistors ~ $2
2 D connectors 25 pin female ~ $5
1 cable 25 D m/m straight through ~$15
1 MIDI port female ~ $5
1 MIDI cable m/m ~ $5
1 copper clad board ~$10
PCB etchant ~$10
Other electronic components (LEDs, IC chips, chip sockets, etc.) ~ $50

ESTIMATED TOTAL: $422.00