If you are near Scranton then treat yourself specifically if you plan a camp and ride at Lackawanna state park. http://www.manningfarm.com/
The farm sells right from the barn about 2 miles from camp. 7 gigantic cones for under $20.
On a side note I am gonna pick up a ice cream maker to make my own. Having teens and a sweet tooth wife means I miss the boat way too often.