ye olde drinking vessels (Kennington OX1)

Does anyone have any mediaeval-ish-looking drinking vessels, such as a tankard or goblet of some sort, anything really that looks older than a modern wineglass, that we could use? We are all invited to a friend's mediaeval banquet for his birthday (busy making constumes!) and so far we have one metal tankard between the four of us. Anything you could spare would be a help and I'd be happy to return things. Can collect from in and around Oxford or Abingdon areas. Many thanks!