There is a wonderful organisation called The Charity Fairs Association which, for years, has been running to boost charities.Its a siple concept. At a Christmas, or any other time of the year Fair, the exhibition is run, usually by a little committee. Members of the CFA have access to this valuable private list of venues. One applies to exhibit (these fairs have hundreds of applicants wanting to exhibit). If you are successful, you trundle along and set out your wares. Its not very cheap