Are there special toy story items sold at disney theme parks?

The only verified information available is that Toy Story is a Disney/Pixar franchise and that a list of its characters is documented on Wikipedia. No source confirms the sale of exclusive or theme‑park‑specific merchandise related to Toy Story. Therefore, based on the evidence at hand, we cannot state that such items exist. If you are looking for licensed Toy Story products, they are typically sold in Disney retail stores and other authorized outlets, but the presence of unique park‑exclusive items has not been documented.