Earlier today David posted a 1962 LIFE magazine photo of a ski mask that would appeal to the family in the Texas Chainsaw Massacre. I took a look at the scanned copy of the magazine at Google Books and came across this article about human digestion, titled "How Food Becomes Fuel: The Phenomenal Digestive Journey of a Sandwich."
The hallucinatory illustrations were painted by Arthur Lidov and I have to assume that they reflect LIFE publisher Henry Luce's wife Clare's strong interest in LSD.