Its that beer bottle hanging on a string your buddy left you.
My Dad in his drinking days used to stash his empty beer bottles behind the seat on his 46 1 ton. In fact, I believe part of the inner body panel had been removed, leaving room between the inner and outer body. When we used to clean that out periodically, there were usually enough empties in there to fill a whole case! When I read the title of this thread, that was my first thought!
