Since the late 1990s, the water utility in San Antonio, Texas, has been doling out rebates on low-flow toilets to residents who turn in their outdated, water-wasting models. But the program posed a problem: what to do with the old commodes? Last year, the city cleaned and crushed 1,000 recycled toilets and used the pebble-size pieces to pave a nature trail at Calaveras Lake Park. The white porcelain even helps light up the pathway at night.
(Illustration by Greg Mably)