I looked for this pic all week before giving up...then today it came up as a facebook "memories" notification.
Pretty sure it was 2006, but I could be wrong. All I know is my daughter's costume was the epitome of my creative talents. Made from a large box, posterboard and topped with real popcorn (she smelled buttery!) no one was shocked when she took home the prize for "Most Original".
And this was long before Pinterest.