In 2026, Disney theme parks primarily track the validity of popcorn buckets through physical design and seasonal themes. Each year or major event (such as the "Disney100" celebration or Halloween) introduces a specific color or character shape for that season's refillable bucket. Cast Members at popcorn carts are trained to recognize current "in-season" designs. While the bucket itself is yours to keep forever as a souvenir, the refill privilege (at a nominal price of $2.38) is officially only valid for the "length of stay" of your current trip. While some older buckets may occasionally be honored at the discretion of the staff, Disney's system relies on the visual rotation of inventory to prevent the use of multi-year-old buckets for discounted refills. If you have a vintage bucket, you can still use it for your own snacks, but you'll likely need to pay full price for a fresh box of popcorn.