The drop string is traditionally used as decoration on the sides of the cake and is the basis of more ornate string work. Called a "drop" string because the line of piped icing is allowed to "drop" or fall, by itself, before reattaching it to your cake. Pipe a row of single strings or multiple strings in rows of two or three.
The random lacy design of this free-form technique depends on the continuous curving lines that do not overlap or touch. Can be used in a small design area or on an entire cake surface. Good for wedding, anniversary and other formal event cakes, but lends itself to more casual themes, as well.