Well, this is a pretty nifty thing I found lying around in my folder for scratch projects, and I decided to share it. Click the ball to drag it, and it will slide in the opposite direction of the way you are pulling it. Basically, like a slingshot. I'm not sure if it works online, but I attempted to make a pen slingshot, and if you download it you can see it a little, but it doesn't work too well. You can adjust the friction with the friction bar. The more friction there is, the slower it will go. I goes pretty crazy.
