(There's no video for Fluid yet. Please contribute to MR and add a video now!)
Fluid is an OS X screensaver that turns your screen into a flowing, oozing liquid when it activates. It uses OpenGL and can take advantage of multiprocessing.
Fluid_0.9.6.zip (3.57 MiB / 3.74 MB)
Fluid.dmg (4.54 MiB / 4.76 MB)
Fluid / DMG image
Mac OS X
Emulating this? It should run fine under: QEMU