Hands Up.

The Rocket was a wooden roller coaster designed in 1947 by San Antonio's Playland Park owner Jimmie Johnson on the back of a napkin. It was purchased from the abandoned park in 1984 and re-assembled at Knoebel's Amusement Park in Elysburg, PA, where it still runs today as the Phoenix.

I wrote an award-winning screenplay based around this amusement park, and interviewed Ed Gaida, long-time manager. I purchased his book and found him to be a fascinating individual who has also written a book detailing the history of sidewalks in San Antonio. (!)

The Rocket has a huge fan base. Rickety, fast, and quasi-dangerous (death toll zero), it remains a popular thrill ride.