I bought several small used trays the other day, sight unseen. When i got them home I discovered that they smell really awful, not quite like s*** but pretty damn close. Only worse. I've been soaking them in a 20-25% bleach solution for 3 days now, and have got 2 of them tolerably stink free. The third, which was probably the culprit all along, still stinks! Are there any remedies other than throwing it in the wood furnace? What godawful photographic process was conducted in this vile thing?