百战不殆

百 = 一 + 白 : Mnemonic symbol: a one hundred 元 bill.

Beelzebub (b) enjoys preparing to allure mortals. In the airplane's living room (ai3) he's waving a flute (一) as a magic wand and enchanting one hundred white flags (白) to look like one hundred (百) one hundred 元 bills (百).

战 = 占 + 戈 : James II of England (zh) prepares to fight a war (战) in the anthill's bathroom (an4). He has a spear (戈) as a weapon and a yellow umbrella (占) as shield, following his hero Leonidas.

不 = 丆 + 卜 : Bruno Bear (bu) is setting up a wind wheel (丆) with a voodoo staff (卜) in the space station's bathroom (Ø4). He also puts a "forbidden" sign (mnemonic symbol for 不) on it, to make clear that it may not (不) be stopped.