iPhone Lens Dial
The iPhone Lens Dial is a case for iPhone that boasts three optical-quality coated glass lenses — Wide Angle, Fisheye and Telephoto — all wrapped up in a slim aircraft-grade aluminum jacket, equipped with two tripod mounts (for portrait or landscape shots).
To switch between lenses you just rotate the disc.
This is very cool “laughs”. If anyone has one of these, please let me know how they go fitting into your pocket :)