Large, fun shop with a decent selection of science items, stuffed animals, t-shirts, books. Sad that they dont have much that is specific to this particular museum, but I guess this is the model that most gift shops use these days. The stuffed animals tend to be pricey for what you get, but books and t-shirts are reasonably priced.

There is some really cool stuff here. The price is rather high I ended up not getting anything after the price of the ticket then cost of the toys was a little much. The store is large has lots of space to walk around without hitting shoulder with other people.