This is probably my second favorite video on YouTube that I've seen this year. (Nothing will top that kid getting kicked upside the head by a train.) Animator Marty Cooper used transparency film and his iPhone to create animated creatures that invade places in his everyday life. 

The short video is called Aug(De)mented Reality and features the artist bringing to life cat-vomiting creatures, plane-eating lizards and all sorts of other animated freaks.