Flat Body (other) – The ability to give others a flat body i.e. more two-dimensional. Flat Body (other/self) is also known as 2D Form, 2D Mimicry, 2D Physiology, Pancake Flatness, Self-Compression and Two-Dimensional Form.
The Rainbow Creature (DC) gave Batman and Robin a flat body in Batman V1 #134.
A mad scientist gave the Atom (DC) a flat body in The Atom V1 #16 using an iron!
Tales of Suspense V1 #23
Tales to Astonish V1 #1
Tales to Astonish V1 #35