Very nice video about a guy who finds a piece of steel at a local scrap yard. The piece looks to be around 3 inches thick and the guy says it is 27 1/2 inches long.
What makes the video so interesting is how he builds a wood base and frame around the piece of steel. He starts out with some 2x6s and a rubber pad. He builds a base made out of wood, puts the rubber pad under the piece of steel, then builds a wooden frame. By the end of the video he has a very nice setup with slots to hold his hammers.
What I would have liked to see is a frame that could be left outdoors, such as in a polebarn. Not everyone has a nice enclosed shop to work in. Some people may have their farm supplies in a simple barn with a dirt floor.