When you replace your old toilet for a water-efficient one, it is possible to recycle your old toilet. Some communities have programs that turn the porcelain thrones into material used for concrete. Unfortunately, these recycling programs are new and not widely available. Your second-best bet is to put the old toilet to the curb for recycling, but with one caveat: Smash it first. Believe it or not, there are trash pickers who will pick up old toilets and try to resell them. So, smash your toilet into pieces so the water hog won't have the possibility of guzzling any more water.