I'm having better luck with the porcelain. Actually it's not so much better luck, but learning to work with the quirks of porcelain. I used one of my metal racks and made a makeshift drying cabinet.
Heavy plastic, packing tape and velcro... Voila :)
UPDATE: After a year I scrapped the velcro. I converted the door seal to close with "rare earth" magnets instead. I used packing tape to secure them. It works fantastic!