Ahem totally illegal to tamper with your number plate in the UK of course but a friend who shall remain nameless has a neat drop down number plate. It has a small hinge at the bottom and drops at the flick of a switch the wind catches the plate pulls it down. To restore said plate push switch and a small motor from a toy car turns a lovey screw thingamyjig and returns number plate to normal position. James Bond eat yer heart out.
