I think I speak for several people when I say that the "Home Study Course" that you are looking for is what we always do....Try it at home on your own. Is there someone out there that has a 'correspondants course'? Probably not...but I don't know for certain.

If you read through old posts, you will find a number of things that various members have tried.....for example....I once took a piece of leather from an old boot and 'made' a piece of leather thong out of it. The (approx) 3x3 inch piece made a 6-7 foot long thong. I wrote about how I did it and the (more detailed) directions and results.......

Many of us do this and write about our findings......I know I have learned a tremendous amount from others on this site. Things that work and things that don't.....I guess you could say that ETS "IS" the home study course.....!