What is the best way to verify authenticity of toy story collectibles?

The only evidence supplied references the Toy Story franchise in general and discusses a Disney interactive storybook series. Neither source addresses how to determine whether a Toy Story collectible is genuine or counterfeit. Consequently, there is no factual basis within the provided data to recommend a specific verification method. Users seeking authentication guidance will need to consult additional authoritative references such as official Disney merchandise releases, licensed retailers, or reputable collector communities.