JETPACK!!!
For all you loosers who are about to type "just right click, moron" I AM NOT TALKING ABOUT JETS!!!!
What I'm talking about is an actual jetpack. Take some sort of backpack shape, add the player-jet emiter comming from the bottom, and slap on the magic carpet script (flying wheeled jeep is too hard to control so please use carpet).
BOOM. Instant jetpack. I'm not sure how instant this would be, but it would be very useful in futuristic RPs or DMs.
Please consider.