I record the Roy Underhill shows and watch later. I don't do much of the neanderthal thing anymore but his techniques are always interesting and informative.
The most recent show was particularly interesting. He had a couple guests who showed the steps involved in making a very elaborately inlaid tool chest. They used some specialized tools that most of us would not have. But the steps could be done without them.
However, among the tools were a couple very small planes. One was brass, or bronze, and was only about 1 1/2" long. It might have been a model makers tool, I dunno. I just had never seen a plane that tiny. He did some fine, meaning precise, work with it.
BTW, they explained why a tool chest was so elaborately inlaid. The chest demonstrated the extent of the skills of the craftsman and help to sell his services. Makes sense.