Chain Clock

I don’t know what it is about clocks, but they are a magnet for innovative designers. I love the simplicity of this device, which is made from a gear and a bicycle chain with copper digits. I think it would be fun to make a clock under this principle with scoops on the numbers. Put the bottom of the chain in a basin with ball bearings or some other scoopable which would ring the hour when they fall from the top.

Unlike a lot of the more unusual clocks, this one is available for sale, although it will set you back, via amazon