Who you gonna call ? :-)

Slimer from https://sketchfab.com/3d-models/ghostbusters-slimer-d76a8a8bb87b4ee3afe4231d1f68...

Stay Puft Marshmallow Man model from https://cults3d.com/en/3d-model/game/ghostbusters-stay-puft-marshmallow-man

placed in Central Park

Probably not to scale and in the wrong spot