Mac Apps for Screensavers

3D Mountain Waterfall (OS 8and 9)

Trial version

Place a screensaver of natural wonders to your desktop.

Words

Free

screensaver module: displays random quotes

The Hitchhiker's Guide to the Galaxy Marvin Screensaver

Free

Put the Marvin from The Hitchhiker's Guide to the Galaxy on your desktop.

3D Dancing Easter Egg

Trial version

Watch as 3D Easter Eggs dance to jazzy music.

Burning Desktop Screen Saver

Trial version

Real-time fire simulation screensaver.

FadeText

Free

Have your favorite sentences displayed as your screensaver.

Aquarium Live HD

Paid

Turn your screen into a beautiful aquarium.

MagicDesktopSwitch

Trial version

Transform your desktop image into screen saver or return it back to normal.

Structure

Free

Screensaver displays 3D protein structures.

AppStartSaver

Paid

screensaver that starts an app of your choice

3D Desktop Bunny Rabbits Screen Saver

Trial version

3d bunnies hop on your screen.

Ansel Adams Photographs Screensaver

Trial version

Enjoy this nature screensaver on your desktop.

3D Ghost Manor Screensaver OSX

Trial version

Watch 3D ghosts wandering staircases, screaming skulls, and other scary creatures.

3D Kitty Heaven

Trial version

Watch five kittens with halos float among the clouds.

TwitterTicker

Free

Stream your Twitter timeline as a beautiful screensaver.

Eureka

Free

mix 'n' match screensaver

Subsume

Free

Screensaver generates customizable binary fractals.

3D Falling Autumn Leaves OS 8 and 9

Trial version

Bring autumn leaves to your desktop.

Fracture

Trial version

Watch fractal images as your screensaver.

3D Desktop Zombies Screen Saver

Trial version

3D zombies roam your desktop

ProgressBars

Paid

Attach progress bars to custom messages on your screen

Raise Your Voice Screensaver

Free

Put Hillary Duff's new movie on your desktop.

3D Jellyfish

Trial version

Watch varied sized jellyfish in a deep blue ocean on your screen.

iTunes and Screensavers

Free

pauses iTunes while screensaver runs