螺旋

螺 = 累 + 虫 : Lenny Lemur (lu) is trying to catch a mosquito (虫) in the observatory's kitchen (o2). To this end he attached a conch (螺) to the end of a rope (累) and throws the conch at the mosquito, hoping to catch it inside. After a miss he can just retract the conch with the rope.

旋 = 方 + 𠂉 + 正 : Mnemonic symbol: a whirlwind.

Xu Xian (xu) is delivering packets in the anthill's kitchen (an2). First he has to disable the alarm, so he uses the key (𠂉) to open a square (方) and pushes the button. Next he whirls around the room delivering his packets so quickly that he creates a whirlwind (旋), which is so fierce that the stick figure (正) gets blown all around the room.