This is a free-form carving made into a 10-pound pumpkin utilizing through-and-through carving techniques with a commercially available 2-mm pumpkin saw. The complete process totaled 12 hours, and it lasted only 2 days before rotting.
Cohen JC. The Hemi-dissected Jack. JAMA Facial Plast Surg. 2014;16(5):305. doi:10.1001/jamafacial.2013.2375