I recently used Facebook to create a tiled background with photos of my Facebook friends. After cropping the image, I used it to customize my Twitter profile.
Steps for creating a tiled background image of your friends:
- Click Friends in the header of your Facebook page.

- Click Everyone, then select — from the drop-down menu.

- Crop the resulting image so it’s square/rectangular. You may also want to remove the no photo icons, representing friends who haven’t uploaded a photo.
More custom Twitter designs.

Ok, what’s up with the full justification of the text above the images on this post? I checked the HTML and don’t see it. Maybe I’ve been staring at it too long?