The iconic Hat Box Ghost Head from the Haunted Mansion at Disneyland, accurately sculpetd, is 5 inches, 12.5 cm tall and comes with its Top Hat.

For Hair use Mohair doll hair (Angora Sheep), which can be obtained very inexpensively on Etsy and other sites.

The Zip Folder contains multiple stl-files - with and without supports as well as a hollowed out head including release holes.

The model could be built on an FDM machine using Glow in the Dark Filament - I used Glow in the dark paint to achieve that effect.