I have thought of this too, only was going to use the actual legal form required for 10 day notice of intent to lein(in Colorado). I've got a couple small ones here, $70, $110, so I might as well give it a try. As for it being a bluff, I don't see a down side, what are they going to do? Call and ask where your lein is at? Tell their neighbors you bluff deadbeats? Also, you still have the option of small claims if you want to push the point. I'll post if ii works or not for me.
If you want people to notice your faults, start giving advice.