What about being a TA, dinner lady or playground supervisor in your local school?
Or, if you have the skills, offering to run a private lunchtime club at school, such as French, Art, Science etc. Depends how wealthy the area is that you live in, but round here parents happily pay £5-10 for a lunch time club, so if you had a handful of children 2-3 times a week, you'd make enough, after you'd paid the school for the use of the room, and shelled out for resources.
From home round here people run hairdressing services, dog grooming, dog walking/pet sitting, editing, translation, book-keeping, cake making, jewellery making, academic and music tutoring, ironing, physio, curtain making, upholstery - anything where people come to you rather than you having to go to them.