I think the most striking thing about these mechanical sculptures is your involvement with the piece. First of all, you have to hold it still to turn the crank. This means you actually touch it. How many kinds of art require touching? Not many. So touching immediately connects you in a tactile way. That connection is continued visually when you turn the crank. The sculpture changes shape and form as you do this. The three designs on this page have the same mechanics and materials with different designs.