I created a 3D pumkpin in my NYU Print3D Jack-o-Lantern Workshop; PRINT3D Club.

I used Autodesk Fusion 360 to create a form, edit the t-spines, changed the size, fill in the gaps, hollow it, and then sketched a face. I saved it as an obj file to 3D print it.

I angled png snapshots, downloaded the png files, and colorized them in Sketchbook.

I tested several shades of orange before I settled on Yam; the final color design on the left. Below were alternative color options.