Just a few -
Collection of scrap iron, pig iron as well as non-ferrous metals for archeological study
Volunteer Estate Planning at the local nursing home
Hand crafting fly swatters from organic materials found in local marshes and swamps
Making and playing Bongos, steel drums and other primitive percussion instruments.
Making, displaying and consuming cheese wheels and decorative center pieces.
Although not hobbies but part time jobs, I also get great enjoyment from the following pursuits;
Hand fitting lingerie
Stone Masonry and stump removal and mushroom picking (all the same employer)
Manufacturing Dental Implants and Hand Crafted Prosthetics from recyclable plastic containers.