Prank script that adds and removes animated ponies to any page.
The script is setup to flash ponies briefly at first but then slowly build an increasing list of ponies especially later in the week where it adds them at a lower interval. So on Sunday you'd occasionally see a pony every 7 seconds flash up. But by Saturday you'd see ponies popping up all the time slowly filling the screen. Ponies will appear anywhere within the window at varying sizes. You can also tweak the delay so that ponies build up much faster.

Script can be tweaked to use any set of images.

Enjoy!