RAYGUN's Guide To: Midwestern Prairie Flowers. Some proceeds benefit the Iowa Praire Network. Prairie Green Screen Print on a Creme T-shirt (100% Combed and Ringspun Cotton) or a Heather Grey T-shirt (65% Polyester / 35% Combed Ringspun Cotton). Cut and sewn sweatshop free. Designed and printed by Union Labor at RAYGUN.