Why not just write to local big employers, send your CV and say what you are looking for. Many supermarkets are keen to employ older staff on a part-time basis and other businesses may well feel the same.
Unless the money is of importance, have you considered voluntary work? The range of work you can do in the voluntary sector is enormous. Everything from staffing shops, working directly with the clients of a charity, who can be anything from children to old epople with everything in between. Most areas have Volunteer Centres (look online), failing that approach any local charity whose work you support and see what help they need.