Definitely Pareidolia ( / p ær ? ' d o? l i ? / parr-i-doh-lee-? ) a psychological phenomenon involving a vague and random stimulus (often an image or sound) being perceived as significant, a form of apophenia. Common examples include seeing images of animals or faces in clouds, the man in the moon or the Moon rabbit, and hearing hidden messages on records when played in reverse.
The word comes from the Greek words para (παρ?, "beside, alongside, instead") in this context meaning something faulty, wrong, instead of; and the noun eidolon (ε?δωλον "image, form, shape") the diminutive of eidos. Pareidolia is a type of apophenia, seeing patterns in random data.
Professor Richard Wiseman collects such images and posts them on twitter if you are interested.
