Which disney park toy story items are highly collectible?

The available sources only describe the Toy Story film series and its cast. They do not mention any Disney park merchandise, nor do they indicate which, if any, Toy Story items sold at Disney parks are considered collectible. Because the question requires details that are not present in the verified evidence, a definitive answer cannot be provided. Users interested in Disney park collectibles should consult official Disney merchandise catalogs or fan communities for up-to-date information.