冉

冉 = ⺆ + 土 : 冉冉 means "soft" as well as "gradually", so I'll represent 冉 by snail mail.

冉 = ⺆ + 土 : Robinson Crusoe drank too much in the anthill, so he's unable to receive the letter of dirt that he gets by snail mail. The snail wants to deliver it anyway, so she just staples it to the table next to Robinson.

冂 = 丨 + ㇆ : Mnemonic symbol from the shape of the character: kind of looks like a map.

Zeus (ju) found a secret map (冂) that tells the location of a golden dinosaur bone (丨) in front of the engine ((e)ng1), so he took a plow (㇆) and dug up everything. He actually found a couple of dinosaur bones, but not a golden one.

土 = 十 + 一 : Tommy Turtle (tu) wants to fix a cross (十) on a flute (一) in the space station's living room (Ø3). He uses dust and clay (土) to hold them together.

⺆ = 丿 + ㇆ : Mnemonic symbol: ⺆ looks like a staple, as used in a stapler.

Zeus (ju) wants to plant bananas (丿) in front of the engine ((e)ng1). He uses a plow (㇆) to dig up the earth and puts the bananas inside. To prevent the bananas from falling down, he staples them down with a stapler (⺆).