Read Thread: Hitchhikers
I did some when I first started boxing but then pretty much lost interest.
The first box I ever found though was a HH, in Texas. The box was missing but the HH was there. According to logging info it seems to have fallen into a black hole three years later in Oregon and has since been retired.
HHs just don't do it for me. Maybe if they traveled more? But too often they stay in a box or someone's backpack or car for too long. They fall into black holes and disappear.