The Lotus Notes Workspace. Love it or hate it. Can't live with it, can't live without it.
But don't get mad at it, get even!
The screenshot below shows the aftermath of a napalm strike by Mary Beth on Ben and Volker.
From a technical point of view the plug-in is fairly straight forward. The real heavy-lifting is done by the TPFM framework which let's us control any existing application from within Eclipse. In this example I'm using it to control an embedded instance of the fantastic Worms Armageddon game.
The plug-in first takes a snapshot of the selected Workspace tab and does some basic image processing to create an image suitable for using as a level in Worms.
The image is used to automatically create the new level and then TPFM launches the new level in Worms. Simples!