If you picture the Hamptons Organic Beauty Bus as a spa on wheels, you would be almost right. Conceived and operated by Karen Clement, a former model born in Grenada, the idea for the enterprise is to deliver beauty services directly to the client’s home. The “bus,” actually a converted Ford Windstar sedan, is painted with a purple live bar code that, if scanned with a cellphone, takes potential customers directly to Ms. Clement’s Web site. The vehicle is used for delivery only, and is filled with the white cotton robes, candles, bamboo fronds, shells, and other paraphernalia Ms.