the cone on the left is 10.5 inches and
the cone of the right is 3 inches.  Both
of these specimens are from Africa
Below is a cone made as a gift especially for me by
Professor Zdenek Bubnik of the Prague Chemical
Institute.  It is 12 inches tall.
Here's a picture of me to Zdenek as he is presenting the
sugar cone to me in 2005 (Frantisek Rehak is the head on
my right shoulder!)