I'm ashamed to say that in 40 years of WDW trips, I have never once ate popcorn there. :-(
It amazes me how many things I am just completely clueless about. I never knew a thing of these souvenir buckets.
On my next trip, I plan to score some of these! Thanks to all who post about the little things. It keeps WDW full of new experiences even for old timers.