> Now I'm thinking of the live action Flash we had a few years ago.

The last reminds me of a prank that didn't quite fall into place: Spoofing a Campbell roadside radar cam. It's rather easy to transmit any speed to simple radar and they trigger over a preset limits. Add a super suit, smoke at the feet, and a glass plate in front of the camera with a little Vaseline to blur the image... even a fair image reading 90+ mph would be a hoot, just not exactly FCC legal.