贝 = ⺆ + 人 : Mnemonic symbol: a crab. In the Eiffel Tower's bathroom (ei4), the Neanderthal man (人) and Beelzebub (b) are fighting a crab with staplers (⺆), but because the Neanderthal man (人) can't handle the stapler he accidentally staples himself in the forehead.

貝 = 目 + 八 : Beelzebub (b) and the Eye of Providence (目) are playing billard in the Eiffel Tower's bathroom (ei4). While the Eye of Providence is concentrating on its next shot Beelzebub is secretly exchanging the eight ball (八) with a cowrie (貝).