I drew this skull mask by manually meshing the polygons in Fusion 360 over a human skull scan from the NIH 3D print database. Thickening the surface didn't work well in Fusion so I pulled the file into Meshmixer which handled it perfectly. Unfortunately, I can't wear it with glasses at the same time, but it fits fairly well otherwise (a little tight in the cheeks). String a bit of elastic banding or strip of cloth through the back and you're good to go.

Printed as shown in Greengate recycled PETG, 0.3mm layers, on an Artemis Delta.

Here's the file I used as reference: [https://3dprint.nih.gov/discover/3dpx-012260](https://3dprint.nih.gov/discover/3dpx-012260)