Does disney offer toy story merchandise at its theme parks?

The only verified information available is that Disney operates a Toy Story‑themed attraction called Toy Story Midway Mania! at Disney's Hollywood Studios, Disney California Adventure, and Tokyo DisneySea. This attraction is an interactive 4‑D ride inspired by the Pixar franchise. No source in the provided evidence mentions the sale or availability of Toy Story‑related merchandise within these parks. Therefore, based solely on the supplied data, I cannot confirm whether Disney offers Toy Story merchandise at its theme parks.