Bake Wonder Mold and Baby Bottle cakes. Cool. Cut Wonder Mold cake in half vertically. Trim 1 in. off bottom. Trim curved top off bottle cake. Prepare both cakes for fondant covering, position on foil-covered board.
Roll out fondant; cover cakes. Using Comfort Grip Round Cutter, cut disc of fondant. Attach to cake using brushstrokes of water. Cut 1/4 in. thick x 3/4 in. wide x 11 in. long strip of fondant, attach to top edge with brushstrokes of water. Use 3 1/2 oz. fondant and roll 2 3/4 in. diameter logs to form "S" and "reverse S" shaped handles. Roll 1/2 in. diameter logs and attach to area where cakes connect. Roll 3/8 in. diameter logs and attach to base.
Using buttercream icing and tip 3, pipe scrolls around disc and along top edge. Pipe "#1". Using tip 8, pipe scrolls on base.