This model prints in two parts.  The head connects with a snap connector.  This connector is not a circle but an oval.  You need to make sure the face aligns with the front of the body, tilt the head to one side, insert the prong lip on one side, and pop it in.  If you try to press the connector in when the face is crooked, it will not work and could break the connector on the neck. 

It is really easy to make little clothes for the dolls. I made a tunic from a piece of felt and some hemp twine. 

The heads are difficult to remove after putting on, so I suggest if you want to make clothes, to do so before attaching head. 

See the video below showing you how to make the tunic and how to pop the head on. 
Tunic requires a little piece of felt or other fabric and some twine or string.

INFO:
A @jessestoys on Instagram informed me that clothes for Blythe dolls size OB11 fit these little jack dolls IF you print the doll at 80% scale.  So you can use some patterns for OB11.  Be aware that this pumpkin doll does have less flexibility though, so this will limit what clothes work. 
ONLY FITS IF YOU SCALE PRINT TO 80% SIZE.

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This model is 100% my own creation and I give the following permissions:

You can:
Sell printed models (online or locally)
Create remix versions with attribution

Please don't:
Sell the model files
Claim the model as your own
Claim remixes as solely your own 

I used a lot of different filament including:
Polyterra Light green matte PLA

Inland Gold metallic PLA

R3d Dark red rose matte

Peakace green PLA

Giantarm matte terracotta