When we first read about Dutch designer Jeroen van de Kant's Chesterfield-style seats and sofas, our first reaction was -- blow-up chairs? I'm much closer to 30 years old than 20, no thanks. (Oh, and the steep price tag ain't so pretty either.) But the inflatable seats did prove one thing: that temporary furniture need not be fugly. Check out these other here-today, gone-tomorrow (maybe?) home pieces...