Copper Pennies Wall Project - It is created on a separate piece of wood that can be attached or removed from the wall. What a great way to make one wall the focal point of a room. Pennies are the cheapest building material you will ever find.
A penny saved could be a penny floor. You can make a tile wall or combine with concrete to make stepping stones in garden. Check out the finished wall, amazing! (and cheap to make) Click the link to find out how to make.
Upcycled recycled table and stools topped with pennies on Etsy, $300.00