自
=
丶
+
目
:
Mnemonic symbol: a hand mirror, which someone uses to look at themselves.
The Eye of Providence (目) is looking at itself (自) in a handheld mirror (自) in the space station's bathroom (Ø4). It think it's indeed looking very good, since Zorro (z) attached a petal (丶) to its eye (目).
由
=
丨
+
曰
:
Mnemonic symbol: 自由古巴, a cuba libre. The character 由 itself even looks like a cuba libre.
Maud Younger (y) is taking part in a charity auction in the outhouse's kitchen (ou2). She is auctioning the dinosaur bone (丨) next to her and is speaking into a microphone (曰). In the other hand she is holding a cuba libre (由), and she is already quite drunk.
软
=
欠
+
车
:
Rachel Rhinoceros (ru) left the anthill after drinking too much. When she got into her cabriolet (车), She felt that it was very soft (软), so soft in fact that she was not able to drive safely anymore: she drove her car directly into the anthill. Inside (an3) She then left an IOU note (欠) about the anthill's furniture for the owner of the anthill.
件
=
亻
+
牛
:
Joan of Arc and Rosa Luxemburg want to use the anthill's bathroom, but there is a bull blocking the way. He posed them a riddle, and as long as they can't deliver the item or component he asked for to fulfill this quest, he won't let them pass.