煉丹術

炼 = 火 + 一 + 东 : Li Qingzhao (li) is smelting (炼) the Pudong Oriental Pearl Tower (东) in the anthill's bathroom (an4) to make a pendant out of it. She put the tower on a big fire (火) and blows air into the fire using a flute (一).

丹 = ⺆ + 亠 : Ever since Don Quixote stapled a beret to his head in front of the anthill, he has these weird headaches. To fight them, he swallows lots of painkillers in form of red pills.

术 = 丶 + 木 : Mnemonic symbol from 手术: surgeon.

In the space station's bathroom (Ø4) the surgeon (术) wants to tickle Sheldon Shrimp (shu) with a petal (丶), but Sheldon thinks it's a trap and he wants to cut him open, so he hides behind a Christmas tree (木).