Hi John, here is the model you were after, Please check the sizing and post some pics if you do take the challenge on, Cheers Jace ; )
I add a second option where buy I added a sphere in the middle and the told the programme to subtract it. Was sure of what size to make the sphere but hopfully thats enough for a head to fit? Cheers Jace
The author marked this model as their own original creation. Imported from Thingiverse.