勒

勒 = 力 + 革 : Sir Lancelot (l) constructed a mechanical bull in the elevator's bathroom (e4), mainly just using a cow's hide (革) and a power button (力). To rein in (勒) the wild mechanical bull he presses the button and rides the bull again and again.

力 = ㇆ + 丿 : Mnemonic symbol: a power button.

Li Qingzhao (li) just had a shower in the space station's bathroom (Ø4) and wants to use the hair dryer, but there's no plug, just the bare end of the cable! She uses all her power to build an electricity plug, and for the two pins she uses a plough (㇆) and a banana (丿). Finally she hits a big power button (力) to turn the power on.

革 = 廿 + 中 + 一 : Mnemonic symbol: a cow's hide.

Guy Fawkes (g) arrived at the entrance to the elevator (e2) to visit this year's darts grand finale. He is standing right next to the dart board (中) and cheers for his favourite player using a self-made drum. The drum consists of a flower pot (廿) over which Guy stretched a cow's hide (革). He is beating his drum using a flute (一).