Do disney and pixar collaborate on toy story merchandise?

The only evidence from the supplied sources is a Wikipedia entry describing the character of Woody and noting that Jim Hanks voices Woody in video games, attractions, and other merchandise. This confirms that Toy Story merchandise exists and that voice actors are involved, but it does not mention any collaboration between Disney and Pixar regarding the production, licensing, or distribution of that merchandise. Without additional documentation or statements from either company, we cannot assert that Disney and Pixar work together on Toy Story merchandise. Therefore, based solely on the evidence given, a definitive answer cannot be provided, and further verification would be required.