Check out this hilarious concept project by artist/designer, Fiona Carswell.

Cell Stickies:
For people who go to great lengths to see what they want to see, Cell Stickies is a small booklet of plastic sheets with ego-stroking text messages printed on them. Not satisfied with the text message you received? Peel off a Cell Sticky and slap it on your cellphone screen, showing you the message you really wanted to see.