In the spirit of European styling and function, the manufacturer has unveiled the Invisi Series II wall-hung and wall-faced toilet line. The products feature the tank and flushing mechanism hidden inside the walls between the studs, which frees up floor space in small bathrooms. WaterSense-certified, the units flush with 0.8 gallons or 1.28 gallons of water.  Cost: $975 to $1,500. Caroma USA. 800-605-4218.