Adagio Teas latest addition to their line of interesting tea makers is one of their most stylish. The Glass Water Kettle not only allows you to see the progress your water makes as it heats up - a process more interesting than you might imagine - but it glows with the light of both electric and gas burners. The writing on the sides of the kettle explains the process of boiling water, but you'll look right past it once the bubbles start dancing around inside the glass. Price: $29.