Finally in advance: Make fondant-covered hat. Tint fondant: 3 oz. green, 3 oz. yellow. Roll out 1/8 in. thick as needed. Cut a 5 x 4 1/2 in. strip of yellow fondant. Brush cone with Piping Gel and wrap fondant around cone. Smooth and trim away excess. For fringe, cut 22 strips,
2 x 3/4 in. wide. Cut slits 1/8 in. wide, 1/2 in. deep, across outer edge. Roll and separate to make a tuft of fringe. Attach to bottom of hat using damp brush. Repeat. For pompom, cut 4 additional strips and repeat as above. Let hat dry on waxed paper-covered board.