I admit to using "Contact one on the runway" (in the hope of getting a land after clearance at an ATC field) and also (horror of horrors) using "rolling" when commencing the take off run at some yokel strip where I may consider that the locals don't have a clue what is happening and might just decide to blunder on to the runway just as I reach 60 knots. I very much agree with using aircraft type identification whilst in the air, and at busy fly-ins I also often use aircraft colour to help A/G, FIS or ATC with visual identification when taxying.