Pikey
Dummy Ejection Facilitator..
I'm going to get a couple of these :
Large Defender alloy wing top box Land Rover 90 110 on eBay (end time 23-Jan-10 19:51:05 GMT)
They are waterproof and will be good for keeping clothes and food etc :
Booger have a look on LRUK there's a guy on there make them that are cut to fit the contours of the tub so you don't lose the gap down the back that you'd get fitting a square box.