37. Old Typewriter
In modern times, professional writers will never use a typewriter to work. However, many significant English students, ambitious authors, and antique collectors love the old typewriter's aesthetics. Most of the time, it's just lying around as a decoration. While most people won't use it, selling a working typewriter always makes more money than breaks.
Most classic typewriters sell on eBay for as little as $ 50. Some of the rarest machines are sold for over $ 1,000. If you have a nice color or unique shape somehow, it will always sell more than one mass-produced one. Remember that they are very bulky, so it will significantly cut your profits if you offer free shipping.