生日快乐

生 = 牛 + 一 : Mnemonic symbol: a cradle.

Sherlock Holmes (sh) comforts a crying baby bull (牛) in a cradle (生) in front of the engine ((e)ng1) and plays him a tune on a flute (一).

日 = 囗 + 一 : Robinson Crusoe (r) is hiding from the sun (日) in an enclosure (囗) full of flutes (一) in the space station's bathroom (Ø4).

快 = 夬 + 忄 : Karl Koala made the mistake to have asked the crystal ball in the airplane's bathroom about his future. After he has seen his fate he quickly and angrily destroys the crystal ball with a flail.

乐 = ⺁ + 朩 : Mnemonic symbol: a cheerleader

乐 = ⺁ + 朩 : In the elevator's bathroom, the cheerleader is beating Lancelot on the head with a banana tree just when Lancelot isn't watching, and laughing at him cheerfully. The cheerleader sneaked up on Lancelot by popping out of a sewage pipe.

乐 = ⺁ + 朩 : Mnemonic symbol: a cheerleader

乐 = ⺁ + 朩 : In the elevator's bathroom, the cheerleader is beating Lancelot on the head with a banana tree just when Lancelot isn't watching, and laughing at him cheerfully. The cheerleader sneaked up on Lancelot by popping out of a sewage pipe.