A plain old ghost for the Lego Wreath provided here: https://www.printables.com/model/218071-lego-wreath
The body, eyes and mouth can be printed separately for those who don't a multi-filament system printer.
Should be printed with the face down and might require support depending on your printer, but newer ones should be able to deal with the small overhangs without any issue.
Colors:
Designed in Fusion 360.
Print time is roughly 35 minutes.
If you're looking for a ghost, see here: https://www.printables.com/model/1040082-simple-halloween-ghost-for-lego-wreath
Other parts:
The author marked this model as their own original creation.