In other words...the state of affairs for attraction-specific merchandise (especially for something like Big Thunder) is sadly lacking-to-nonexistent.
There's a few Big Thunder pins but beyond that...? I really haven't seen anything. (And it's one of my favorite rides.)
-m
One approach that they need to consider is that attraction specific souvenirs don't have to be offered only at that attraction.
They can be offered in the general gift shops such as Mouse Gear and the store at Downtown Disney and at places near the entrances to each park.
People would be more than happy, for instance, to purchase Haunted Mansion and Big Thunder Mountain T-shirts on Main Street.
Register on WDWMAGIC. This sidebar will go away, and you'll see fewer ads.