A long, long time ago, when I was a little kid infact, I saw a really cute homemade Toy Story fan movie from the really early 2000s, made by some parents for their kids, on YouTube, uploaded under the title of "The ORIGINAL Toy Story 3!" or something like that - and half-way through, it turned into a Wallace & Gromit crossover (think the MLP fanfilm that had the Powerpuff Girls show up in the middle). I thought the crossover was kinda weird at the time, but in hindsight, that makes a lot of sense?? Like, I think the mentality was just "My kids like these characters, and my kids like these characters, let's have them meet" and nothing else (I don't remember the video well enough and can't find it to say if W&G were actually toys in the plot), but honestly it would just make sense for Woody and Buzz to just randomly meet a claymation "actor" and mistake them for a fellow toy. Plus, I think this was made around the time of the Wallace & Gromit taxi incident, which is basically just a setup for a Toy Story movie as is.