How to create a custom Feedback-Loop Effect for your Facebook timeline :

How to create a Loop effect 
on your Facebook timeline :

1. Take a 1200 x 640 px screen capture of your current Facebook timeline. Make sure to memorize the exact area that you crop, and save the image as 'fb1.png.'

2. Next, upload 'fb1.png' as your new timeline photo and shift the image up and to the right, so that it begins to make a tunneling or mirrored feedback effect.

3. Take a second screen capture using the same cropping area and size as before. Save the image as 'fb2.png.'

4. Repeat steps 1 through 3 several times, until you have achieved an interesting feedback effect.

HELP SECTION:

1. Can't move the image left or right? You may need to take a wider screen capture.
To achieve this you may need to increase your monitor resolution to a larger size. (i.e" 1440 x 900 or larger)

2. Don't have Windows 7 or a snipping tool? You can use this free screen snipping tool: http://getgreenshot.org/downloads/ or search google for "free screen snipping tool"

Video Tutorial :