For Triple Drop String: Mark cake for the longest, bottom row of drop strings. Pipe the
row of strings around the cake as instructed above.
Return to the first drop string point, squeeze the bag and drop a string with a slightly
shorter arc than the first row. Join the end of this string to the end point of the bottom
string. Repeat keeping drop strings uniform in length and width around the cake.
Pipe the third row by returning to the beginning drop string point. Move tip slightly next
to the previously piped strings; squeeze the bag and drop a string with a slightly shorter
arc than the second row. Join the end of this string to the ends of the corresponding first
and second row strings, again offsetting where the tip touches the cake to end the
string.