As promised, here is a photo of the suction cup camera mount which i used for the car hood shots for the cushions video (hoping to have that done and out in the next two weeks).
Manfrotto 241V Suction Cup mount, with my new Canon 7D attached.
As you can see from its attachment to my living room window, its a damn sturdy mount with three rotating elbow joints for totally flexiblity when lining up a shot. We clocked up about an hour and a half of driving time with this mounted on the car during the shoot and the cup did not budge once, thankfully too as i didn't really want to test reliability of the backup cable we made. Still, a great piece of kit, and one i know i'm going to find very useful on future shoots.