Nice website
I really like re-purpose things.
In that picture (closest first) is an old dock cleat from Alameda naval shipyard being re-purposed as an anvil, then the swage block, and then the bottom of an old welding tank cut off and flipped upside down to use as a forming dish. Under that is a 8" iron pipe end-cap filled with lead. In medieval times they used lead as a forming surface. works well but it is toxic, so I keep it capped with the pipe end-cap when not in use (or being used a a mass object...)