I'm starting to play with camera trapping. Nothing finished, just a box I made with a little Canon R100 in it, and a trigger I bought from camtraptions.com. No flash setup yet, but I figured I'd put it out near my house to test and see if I could at least get a squirrel or two, and to make sure I don't get a lot of false triggers. I had originally made my own trigger, but it was falsely triggering quite often and I threw in the towel.
I know I can buy complete setups, but its more fun to play around building up something myself.