Optical illusion tricks your brain into thinking the face is inside out | Daily Mail Online
Hollow-Face illusion - Wikipedia
Deep Cleanse Mask Stick Green Tea Purifying Clay Stick Mask with Rotating Head Face Moisturizes Oil Control, Deep Clean Pore, for All Skin - Walmart.com
The rotating mask illusion on Make a GIF
This hollow mask illusion fools me every time | Boing Boing