I ride my xs to work every day and needed a little storage. I didn't want anything too large- just big enough to fit a few tools and a backpack- I had an old ammo can laying around the garage and I wanted to fix it on the back. I went to the local dump and picked up an old exercise machine for 2 bucks. I chopped it up- bolted on a piece and had a little platform for the can. I tapped some holes in the platform and bolted on the can. I used a great LED light that had a riding light and brake light. It was the OPTRONICS STL-78RK and it was on sale at my local Kragen Auto supply for 18 bucks. The whole project was 20 bucks- I only used a hacksaw, drill, and grinder. Here are some pics-