Well, snatched this off of CL for a song, only issue I had was getting it home with the scooter. I'm going to use it for the grocery getter and weekend camping gear hauler.
edit: Thumbnails: click to enlarge. Now to figure out what material to use for the flat bed. I might add some kind of sidewalls or just use a rubber maid container similar to ones I have seen on here.
another edit...
Just roughly my goal. The black "web" is an elastic net that allows easy securing of loads.