[ed's lawn service]

I have a flat trailer and was wanting to put a locking, plastic bow or tote on the hitch so that I could keep my gas cans and handheld blower locked up. I saw a box similar to what I want on the front of a jet ski trailer and was wondering if there would be and internet site that would sell these. I used the Yahoo search engine, but I couldn't find what I was looking for. Thanks in advance...