I've been trying to figure out a way to keep my digital camera safe and secure while riding. I found a new Pelican box on Ebay for 15.00 and I think it is going to work well. It also has foam inside of it to keep it from vibrating. They are supposed to be water proof to 30'. I zip tied it on my front rack and it seems to be very secure. I'm thinking of maybe getting one of the larger sizes for the back rack.