Yeah I made one of those too, used an old fire wood stand/holder for the arms and pool floaties for the cushions... For the floor jack. The fender stand mounts to the engine stand and just happens to fit the bumper cover I'm working on now.
These tool ideas make a big difference in how the job turns out I thnk. At least I see them improving my work.
And I get WAY better advice and ideas here than any of those car shows.