We have covered plenty of awesome iPhone stands and docking stations in the past. CellTack happens to be one you can wear. It is a functional ring that can be used to hold your device with one hand comfortably. CellTack can be used as a portable smartphone stand. You can use it to dock your device to almost any surface. Every ring has its individual magnetic signature, which means you can do all kinds of neat things with it.
The team behind this product is also developing a protection cover with integrated CellTack cleats, a bike mount,, and armband. You can use CellTrack for Android devices and small cameras too. This interesting product is getting funded on Indiegogo right now.