Lets see what custom tools you have made for upholstery, sewing and top installations. Please show picture and a description of what it does and what you had to do to make it.
I made a piping/ welt cord jig. I just got so sick of making them by hand. It took a while to get adjusted the way I wanted but it works pretty good. Then I googled piping folder and found a bunch I could have just purchased on line. Should have asked that google guy first...>:)