Macifier is a free application that locks your keyboard and mouse to prevent accidental clicks and keystrokes. Main features include: allowing toddlers to Skype their grandparents without muting, minimizing, or closing the application; cleaning your Macbook Pro without having to shut down your machine; and blocking your cat from issuing a sudo rm -rf %2F* while you are away.
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.
