A type of female contraception. http://www.netdoctor.co.uk/sex_relationships/facts/diaphragms.htm
They don't buy them, they get them off of the soda cans...
Try this website: http://www.edps.com/index.php/cPath/137
Check out etsy.com people make stuff and sell stuff... kind of an eBay for handcrafted items but no auctions. You can also check out shophandmade.com/Store/Cthreedesigns it is like the site mentioned...
yes at the local flea market