Here is a clock that takes recourse to some sort of a 3D imagery to display time. The Seeing Double Clock uses red and green transparent films on the clock hands to display the minute and hour readings at the same spot. This will take away the job of shifting our eyes from one hand to another to deduce the exact time. I only hope that the minute and hour readings do not overlap on each other to create more confusion. The 16-inch diameter clock costs $50.
Via: Slippery Brick