Thunder Msg is application that you can take a and funny picture like a sample picture below.
How to use.
1.Set characters your want to show.
2.Tap start
3.Wave your hand holding your iPhone or iPod Touch,characters you set is automatically flashes detecting your a hand movemement.
*You can go back to characters setting menu by tapping the top of display.
*You can configure the speed that a character changes to a next one,and the duration that a character is show in Setting.
You need some training ,because It is little bit difficult to wave your hand in appropriate speed.