How to verify disney world exclusive merchandise?

The only source supplied is a Wikipedia article about the 1995 animated film A Goofy Movie, which details its production and cast. There is no mention of Disney World exclusive merchandise, its authenticity, or verification methods within that article. Consequently, based solely on the given evidence, no reliable guidance can be offered on how to verify such merchandise. If you require information on authenticity checks, you would need to consult additional, specific sources that address Disney World souvenirs and merchandise.