Smartphones, so disposable that we don't mind smashing them together.
[video=youtube;tj7al6MXu7U]http://www.youtube.com/watch?feature=player_embedded&v=tj7al6MXu7U[/video]
[video=youtube;tj7al6MXu7U]http://www.youtube.com/watch?feature=player_embedded&v=tj7al6MXu7U[/video]