上古

上 = 丨 + 二 : Sherlock Holmes (sh) investigates a mysterious murder in the anglepod's bathroom (ang4). Somebody has been killed while using the golden squat toilet. He finds a mysterious apparatus on top (上) of it, and breaks it open using a dinosaur bone (丨). As the apparatus breaks, he finds the murderer's weapon: The dinosaur bone is sticking in a capacitor (二), which has been hooked up to the golden squat toilet to kill the victim using the lethal electric charge.

上 = 一 + 丄 : Mnemonic symbol: as in the movie "Up", someone will be using lots of balloons to send something on a long journey. Sherlock Holmes (sh) prepares to take off in the anglepod's bathroom (ang4). He fixed a lot of balloons (上) to a flute (一), on which he plans to sit during his journey. At this moment the flute is only held back by the 90 degree corner clamp (丄) which is fixing it to the ground.

古 = 十 + 口 : Mnemonic symbol: at least on German maps, this character actually resembles a cloister.

Oh no! Gitta Giraffe (gu) found that the golden cross (十) broke off of the cloister (古) in the space station's living room (Ø3)! She skewers a mandarin (口) on top of the cloister so that she can skewer the broken off cross back on to fix it.