Bikes with suspended seats already exist, but none as pretty as these. Sure, it might be more for the laydeeez in the house, but it'd certainly be a talking-point for whoever rides the thing.
Created by the Dutch Vanhulsteijn, the two or three-speed bikes start at €1495 ($2110), and look to be pretty customisable in terms of what you can request it to look and ride like. I'll take the blue one, alstublieft. [Vanhulsteijn via NotCot]