Hieronymus Bosch (Jeroen van Aken, ca 1450-1516), The Garden of Earthly Delights, triptych (ca 1500), right wing, detail 2.
(Source: en.wikipedia.org)

The egg-shaped torso of the so-called Tree Man is borne by a pair of rotting tree trunks. His hindquarters have rotted away, revealing a hellish tavern scene within, while his head supports a large disc on which devils and their victims promenade around a large bagpipe. His face looks over the shoulder to regard the disintegration of his own body. Above the hellish tavern, a pair of huge ears advances like an infernal army tank, immolating its victims by means of a great knife.