造血

造 = 告 + 辶 : Mnemonic symbol: an automated robot arm like the ones used to manufacture cars.

造 = 告 + 辶 : In the aortas bathroom, Zorro sets up a robot arm to manufacture gladiator sandals for him. He also programmed the robot arm to set up a LED display to count how many pairs of sandals it produced.

血 = 丶 + 皿 : Mnemonic symbol: blood transfusion.

Xu Xian hurt himself and needs to get a blood transfusion in the elevator's bathroom. He found a petal leaf as donor, which is bleeding droplets into a bowl; Xu Xian gets the blood from the bowl as infusion using some tubes.