In Danish carpenter Ole Christiansen created a set of interlocking red and white blocks, the first of what would go on to become Legos. It wasn't until 1958 that the Lego company patented the small bricks.
Pictures of amazing things that were made with PVC pipe. PVC pipe is a very cheap item to purchase at your local home improvement store. There are many things you can build using PVC pipe. To make things from PVC