I've got some long black traps with a "flag" on them that pops when triggered, and those seem to work well enough. A chunk of rebar to poke around and find the

I've got some long black traps with a "flag" on them that pops when triggered, and those seem to work well enough. A chunk of rebar to poke around and find the tunnel, a bit of hand digging, and I can start pulling 'em out in a hurry.