Use royal icing to decorate the cookies. Horses: Using tip 2, outline back legs and tail, pipe string tail, add pull-out string mane and zigzag girth. Using tip 3, add dot and string bridle, dot eyes, outline ears and zigzag hooves. Pipe tip 2 zigzag strap the length of the horses body and attach 4mm beading. Cut a 10 in. length of pearl beading and attach one end to the bridle. Set aside and let dry completely. Once both the horses are completely dry, attach the short end of the brace to the back of one horse. Let dry. Position the second horse forward and attach other end of brace to it. Let dry. Wheels: Decorate both sides, beginning with the back first. Let dry completely between sides. Following the wheel spokes patterns, use tip 3 to outline edge of wheel and pipe design. Attach 6mm beading. Attach drop flowers and pipe tip 349 leaves.