These are actually some things I think should be removed from the price list.
Sunrod
This one-foot-long, gold-tipped, iron rod glows brightly when struck. It clearly illuminates a 30-foot radius and glows for six hours, after which the gold tip is burned out and worthless.
Water Clock
This large, bulky contrivance gives the time accurate to within half an hour per day since it was last set. It requires a source of water and must be kept still because it marks time by the regulated flow of droplets of water. It is primarily an amusement for the wealthy and a tool for the student of arcane lore. Most people have no way to tell exact time and there is little point in knowing that it is half-past-two if nobody else does.
I'm actually very surprised that no one has come forward about this before. These two things are plagiarized, word for word, from the Dungeons and Dragons Players Handbook.