For those who are now sick if this, the picture is the 808 butterfly logo.
Looks more like my doormat
So how do you do it, i think you have to squint looking at the right of the picture, ive never been able to do these, god knows why ive bought 12 for my wall
There are different ways of viewing these sort of pictures. I find the easiest way is to look 'through' the picture - i.e. focus at a distance beyond your computer monitor.
When you look at something, your eyes are looking at different angles (like this - \ /). You have to try and get your eyes almost parallel (| |).
Practice by looking at the orange 808 logo at the top of the page. Try and focus beyond the screen and you should end up seeing two logos. If you can do that then do the same to the Ryvita biscuit and you should see the 3D logo.
I've always had trouble with these kind of things, but this was the hardest so far. It took me ages. Now finally I managed. Pretty neat. What's really scary is that once you've focused the 808 logo, if you move your head, the logo starts moving too, but the background, which is like on a different level, stays put!