Step 1: Locate a youtube video

Step 2: Go to youtubedoubler.com

Step 3: Paste the URL of the video in both first and second video slots

Step 4: Play both videos. Make sure they're almost exactly in time

Step 5: Cross your eyes until both video images meet in the center

Step 6: TRIPPING BALLS.

11/19/2008 1:28:27 PM

i'll pass

11/19/2008 1:29:10 PM

Here is an example:
edit: haha oh christ that hurts my eyes

[Edited on November 19, 2008 at 1:31 PM. Reason : ]

11/19/2008 1:30:15 PM