These floating pool lanterns from Horchow will look equally good on a warm summer night and a cool winter one as they cast ethereal reflections across any water's surface. They have the shape of a "traditional" lamp and a refined look, but each one is a single piece, measuring 9" across rising 9.5" above the water, though the lamps are actually 21.5" long, overall. The lamps get their glow from a rechargeable light bulb, which will glow for up to 8 hours at a time, and can move about freely, unconstrained by wires or another power system. Chargers for the light bulbs are sold separately. Price: $399 each.