Time

 

To make this shot I had to improvise everything! for the background I used a large piece of cardboard (that I painted previously for homework which was to recreate the shower scene from Psycho, that was my set) also the gears are made out of the same cardboard, I hanged the hourglasses with some thread to a wire and that's it (only the third one is glued to the cardboard).
no special lighting here, just the roof lamp.
Here's the set-up: