Here's what you do:

1. Go out and buy a cuddyback and place it in a spot observing your stand where you know they wont find it.
2. Make sure that you place it in a spot where it will take good face shots.
3. Using a green piece of construction paper take a black marker and write "Smile!! your on cuddyback camera (bad name inserted here)" and laminate it with some lamination sheets.
4. hang that near your stand where you know they will see it but wont be blowing around.
5. Demand that all of your stands be returned or you will call the DNR officer or state police!

* You could also just put up the paper without the camera to freak them out.

My buddy did this and busted 3 guys trying to steal his stands. He knew exactly who they were and you could see them trying to cover their faces as they ran! Too late!!! He made one phone call and had 4 of his stands returned after he threatened to prosecute. Sounds like alot of $$$ but you have to look at it like you are protecting your investment.