THE COWVALANCHE!
UPDATED! Check below for updates. 
Yep, it's true. Many people have died in the mountains of Tibet because of it.
Just a random idea. I wanted to make a game out of it, but I challenged myself to a quick screensaver and this is what came out in an hour. Put the .scr in your C:\Windows directory, set it up, and POUME. Instant fun. 'Tis my current screensaver, and it's so pretty.
Download the COWVALANCHE screensaver with sound
Download the COWVALANCHE screensaver without sound