How about this, my mate works at coles nightfill, has a crappy old camry, security came in about midnight saying they found 3 cars missing numberplates, one was my mate, just parked there they stole the number plates, so they called hte cops, dusted for prints etc, they found out later, all 3 plates were reported stealing petrol from a servo 10mins down the road.
So 3 cars, steal 3 lots of number plates together, then go fill up together and drive off with fake plates attached... hahaha