Colorful messenger bags and totes created from re-purposed construction netting, recycled rice bags and Cambodian silk. Screen-printed cotton outfits designed by the Chicago- and Cambodia-based Malia Designs. Divine chocolate made from cocoa beans sustainably grown in Ghana. These are just some of the finds at Greenheart Shop , a thriving Fair Trade business in Chicago’s trendy Wicker Park neighborhood. Shoppers recently were treated to a fashion show complete with runway models decked in green wear from head-to-toe.