If you snap the majority of your family photos on an iPhone, USB Fever has a literal handful of detachable lenses that can dramatically expand the types of shots you're getting.
The wide-angle lens (pictured above) provides 0.67 wide zoom and Super Macro capabilities for ultra-close shots, and it's easily swapped out for the 170-degree fisheye lens and 2.0X telephoto lens via an adhesive backing and magnetic ring.
If you're not an iPhone 3G user, don't give up hope: All three lenses also attach magnetically to a number of different metal devices, including digital cameras and laptops.
$16.99 each from USB Fever. [Via iPhone Alley]
