Yeah, this feels like it fits better as a workshop thing than a vanilla one.
Pretty much all the vanilla models have some reason for being there. Masculine/Feminine are fairly obvious, being general people. Milk Carton was a simple placeholder in the Kickstarter trailer (I think) turned official by popular demand. Skeleton was a classic of Gmod Tower, and one of the few playermodels that wasn't under copyright. I'm all for silly playermodels, but that doesn't mean that adding whatever whimsical idea gets suggested is a good idea.