勗

助 = 且 + 力 : Mnemonic symbol: water wings helping you to learn how to swim.

Julian Giant Squid wants to learn how to swim and put on a lot of floaties in the space station's bathroom. As he hits the power button to inflate the high tech floaties remotely he forgot that there are still a lot of floaties left, stored in the shelf—he is reminded instanlty as also all of them inflate.

曰 = 囗 + 一 : Mnemonic symbol: a microphone.

Yu the Great (yu) is selling flutes (一) in front of the elevator (e1). He has a whole box (囗) of them, and he's advertising them by using a microphone (曰).