BubbleMon Dockapp for Linux displays CPU and memory load as bubbles in a jar of water. But that is where similarity ends. New bubblemon-dockapp features translucent CPU load meter (for accurate CPU load measurement), yellow duck swimming back and forth on the water surface (just for fun), and fading load average and memory usage screens. Either of the info screens can be locked to stay on top of water/duck/cpu screen, so that you can see both statistics at once. Pretty nifty toy for your desktop.