The CPT of our unit was really good friends with the civvy cop, and they must have made some sort of bet, because one day, Captain (name redacted) came over to our barracks and got us togather and mentioned that he would very much like it if our unit had the neat magnetic Military Police signs that were JUST LIKE the ones on the vehicles of the MP's who were stationed at our AT base. We got the message, so all of us got together and started scheming how we could get them -- at night, during chow, how could we do it?
The next day I had a brief liberty into town to pick up some supplies that my Sarge needed. As I was getting my s**t ready, I saw an opportunity: Two MP's in their vehicle parked next to a whole bunch of other cars. The mag signs were attached as usual, but this time the other cars gave me cover. So I walked by one of the sides and hooked the sign right off and stuffed it under my blouse. Then I did an about face and hooked the other one. Went back into barracks, rolled them both up tightly, grabbed my wallet and ID and blew outta camp. Made it to a civilian postoffice and mailed the magnetic signs to myself, got Sarges supplies, and returned to camp.
About two hours passed and the whole place went nuts. We were all called into formation and the camp Commander tore us all a new a-hole saying someone stole the MP magnetic signs and we BETTER EFFING RETURN EM and etcetera. They tore up all the barracks and shook us all down and searched all our POV's and everything, but I had already gotten em in the mail!
Later, I told the Captain how I did it (he was impressed) and the last day of camp he took me aside to show me that the MP's were now removing the (remaining) signs from their vehicles every time they got out. We both made it into a building before we dissolved in tears laughing our a&&es off.