Decorate bottle cap. Tint 1 1/4 oz. fondant per treat lemon yellow/golden yellow combination (for yellow), sky blue, leaf green or rose. Use 9 in. fondant roller with purple guide rings to roll out 1/8 in. thick. Cover candy bottle cap base with fondant; use piping gel to secure and trim as needed.
For rim, use knife to cut a strip, 1/4 in. wide x 7 in. long. Use damp brush to attach to cap base. Use knife to score vertical lines, 1/4 in. apart.
For top button, roll a ball, 1/4in. dia. Flatten top and bottom. Use damp brush to attach.