This recent image from the surface of Mercury has cause NASA to wonder,
Anyone Else Think This Looks Like the Cookie Monster? Ok, so maybe it's just me. But the superposition of younger craters on older craters (in this case two smaller craters upon the rim of an older crater) can result in landforms that appear to resemble more familiar shapes to human eyes.
That, or maybe it's a sign from the Yip Yip Martians.