Dockyard Manager was a program that enabled users to have multiple docks and switch between them using the menu bar, a Dashboard widget, or a standalone application. However, due to incompatibility with Spaces and a large codebase, it was retired. For a similar program, NSCoding's Dock Spaces can be used as an alternative.
Wineskin Winery creates Mac OS X ports/wrappers for Windows programs/games, with an easy-to-use GUI, integrated Wine, X11 and an installer.
LiquidMac uses a particle system to imitate liquid and responds to laptop orientation.
