Photojojo has released a loop named the iPhone Wrist Strap so that you can make your iPhone 4, 4S or 5 safely on the wrist.
The Wrist Strap ships with a screwdriver that you have to use to remove the two bottom screws from your device.
You then place the bar in the right location and put in some longer screws to keep everything in place.
The iPhone Wrist Strap uses an environmentally friendly leather strap, in a variety of styles to choose from.
The Wrist Strap from Photojojo is compatible with the iPhone 4, iPhone 4S and iPhone 5 for $35.00.
Source: The Photojojo Store!