Free: Contests & Raffles.
I use a bear box with two 3inch lag bolts and a cable. Haven't had one stolen yet, but I have had pictures of other people and know that they had to have seen my camera. Maybe I'm lucky and they have all been true sportsmen!
True Sportsmen! that's great...I know there are some out there. I had a guy wave and do a thumbs up on my camera. I later saw him in the field...I let him know I got him on my camera and he was thrilled. It sucks that a few can ruin it for us all.
I like it. I would also like to see one rigged up to a fence zapper