Nintendo used puppet versions of Fox McCloud, Slippy, Falco and Peppy to promote the original Super Nintendo game Star Fox in the early 1990s, then the characters faded from public view after the campaign ran its course. [1]
Time Extension investigated what happened to the puppets and said it followed leads and spoke with Star Fox programmer Dylan Cuthbert and artist Takaya Imamura. [1]
Shirogumi said the Fox puppets were made by gluing fur and feathers to natural rubber, which it said deteriorates when exposed to air. The company said, "The Fox puppets created at our company were made by gluing fur and feathers to natural rubber, so they deteriorate simply by being exposed to air. Because of that, we had to destroy them after production was finished." [1]
The report also said rumors are circulating about a new Star Fox game, reportedly planned for a Switch 2 debut this summer with online multiplayer. [1]