When we were there in November we noticed that souvenir items such as mugs, glow cubes, straws and popcorn buckets came and went fairly quickly. I don't know if it was a supply chain problem or DL just ordered a small quantity. You could peak into every counter service restaurant to see if they have the mug/cardboard standee on display which would mean it's available. Sometimes the souvies were available, but not on the menu.