Quantity   Component name
6 × 2ftx4ft polycarbonate sheets http://www.ebay.co.uk/itm/261144723783
8 × pairs of waterproof connectors http://www.ebay.co.uk/itm/261582900006
1 × 5m of LED strip (may need more) http://www.ebay.co.uk/itm/171522956847
24 × power MOSFETs http://www.ebay.co.uk/itm/231503069941
8 × PCBs https://oshpark.com/orders/UVd3Zd07
1 × Arduino Nano
1 × Waterproof tub from supermarket
1 × car battery or similar (12V)
8 × WS2801 SOIC14 chips