之至

之 = 丶 + Z : Mnemonic symbol: Sooo sleepy... "zZz" (the character looks like a "Z"). James II of England (zh) fell asleep in front of the space station (Ø1). He sleeps on a big petal leaf (丶), making loud "zZz" (之) sounds.

至 = 一 + 厶 + 土 : Mnemonic symbol: one of these conveyor belts from which you pick up your suitcase when you arrived at an airport. James II of England (zh) finally got the package he was waiting for! He picks it up from the arrivals (至) in the bathroom of the space station (Ø4). In it is a flute (一), which he sticks into his nose (厶). He blows his nose, and boy, does a lot of clay (土) come out! He's glad to have a free nose again.