A friend has a machine shop, he makes fab tables with the drilled holes to accept the clamps and fixtures you can buy, hot hands or something like that. I have a chassis table in mind that uses several of those at intervals that may be moved to build dragster chassis.
This guy made his own planishing hammer and English wheel from 1/2" plate about a 3 1/2' throat. Very talented, I'll admit to being slightly envious.