Pictures of Pennies: "The following is the basic pattern for building cantilevered structures with Pennies. Although it looks trivial, we can build amazing structures with these pillars. All penny columns are ten high, a 'stack'. Two side-by-side pennies held in place by a penny above them is called a 'triad'. Below is a stack with two triads resting on top. "
This is why civil engineers don't get laid.