Heidi presents the challenge: Design a cocktail dress with your model as your client. This challenge highlights green textiles; that is, textiles that are environmentally responsible: no synthetics, no poisonous dyes and, when appropriate, organically-grown. I visited MOOD several weeks before this challenge to research the range of textiles available in the category. Admittedly, the range is limited, especially when it comes to color, with many of the textiles being white or ivory. Consequently, many designers dye these textiles, and that gives them infinite custom options. Regrettably, our Project Runway designers would not have time to dye, given that they had one day for this challenge.