hi,
Mimatic and chisel are two such apps where you create create personal messages in the above style .
Note: Off topic software development link removed by moderator.
SOMEwhere, I know there's an app that allows you to make your own personal messages in this style. I saw someone do it for a friend's birthday last month. Problem is- they could not remember what it's called.
Any clues?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic