bigbuck78: jlh42581 and mb915 both have good suggestions. Combining the suggestions, you could camo the lock box. I have the Moultrie M100 cameras which is a higher version of the M80. Moultrie makes an excellent, well designed lock box. With a lock box, it is more difficult and time consuming to make position adjustments and opening to swap out cards. If someone decides to steal something, they will get it one way or another or destroy the item doing it. Camo will only work for the color and bark pattern of the tree you put it on, to make it blend in.
If you go to the trouble to apply caulk/epoxy then shape, sand, and paint to look like bark; why would you not just apply the caulk or epoxy and then apply real tree bark to the camera? I would think this would look better than painting it, no?
I'm very important. I have many leather-bound books and my apartment smells of rich mahogany.