Carve pumpkin faces on the oranges. Cut off top of oranges and scoop out orange segments, being careful to leave orange pieces as intact as possible. Cut a small slice off bottom of oranges so they will sit up straight and not roll.
Separate egg whites and place in deep bowl. Beat with electric mixer until stiff peaks form; add sugar to taste.
Preheat broiler. Layer and fill orange shells with ice cream and orange segments. Dollop tops of oranges with meringue.
Place oranges on cookie sheet and broil 1-2 minutes or until just lightly browned. Serve immediately.
gf vanilla ice cream is ice cream that has been made with whole vanilla bean and not vanilla extract.