Xsnow

Xsnow is an application that makes it snow on your graphical desktop.

with KDE 3

 * Install xsnow as described at installing_software
 * Make sure in kcontrol that Desktop -> Behavior -> General -> Allow programs in desktop window is tagged
 * To activate xsnow, use kcontrol to set Appearance and Themes -> Advanced Options -> Use the following program for drawing the background -> Add -> xsnow