The Olloclip is an handy tech accessory for iPhone4S that offers an array of different lenses that essentially turn the iPhone into a Lomo-like camera.
With the Olloclip, iPhone users can shoot in fisheye (captures 180 Degree field-of-view), wide-angle (provides extra field of view) and macro perspectives (applies 10X multiplier and offers depth of field). The great thing about the Olloclip is that it offers one small, convenient package that shoots all these different ways.
The Olloclip snaps easily to iPhone 4s and iPhone 4Ss and simply needs to be flipped to reveal a different lens. It is currently a Kickstarter project and has raised nearly $70,000 so far.