Hmm. I bet this could be marketed as a novelty dairy product. You’d have to design the mold for the skull of course and then I see possibly frozen custard as the hair. So..

• a selection of single or swirled flavors. The swirled would give it the look of the drawing with possible variations on luminescent colors
• a custard “hair” filling with flavor options.
• cone can be a regular waffle cone
• wrapper could have something like fun facts about the human skull 💀 or create distinct characters that are human and animal based.
• rinse and repeat on steps above