凸面镜

Tommy Turtle (tu) is installing a convex (凸) lens to the outer hull of the space station (Ø1). The lens is so convex that Tommy Turtle is unable to embrace it with his arms.

面 = 丆 + 囬 : Mnemonic symbol: a spray flask with one of these liquids which make a surface super slippery.

In the anthill's bathroom (an4), Marilyn Monroe (mi) wants to set up a wind wheel (丆) on top of a closet (囬). Just as she tries to fix it she slips and falls down, the wind wheel crashing on the floor. She didn't notice that somebody used a can of non-stick coating (面) on the closet's surfaces (面).

镜 = 竟 + 钅 : Joan of Arc (ji) asks the mirror (镜) inside of the engine's bathroom ((e)ng4) what her fate will be. The mirror shows her a Jack in the box (竟) stabbing her with a golden harpoon (钅). Joan of Arc instantly realizes that this is an omen telling her to beware of the king of England.