Here is a picture of a recent cake I made for my cousin-in-law. I made the butterflies with a cookie cutter impression and then took a #3 round tip to make an outline of the butterfly. I took a small art brush (used exclusively for cake decorating) and brushed the icing to the middle. I used a #352 tip to make the stalks and the border. I then outlined the butterflies and the stalks in black to make them "pop".