Dr Rhol A Doobie Lab Coat Adult Costume : It's no bluff, Dr. Rhol A. Doobie has the good stuff! This funny Halloween costume will be sure to keep your friends smiling all night long! Costume includes one polyester lab coat with medical cannabis leaf emblem and "Dr. Rohl A. Doubie, Medical Marijuana" printed on the left side. The lab coat pockets are overflowing with felt cannabis leaves. Add your own pants, shirt and tie. One size fits most adults.