十

早 = 十 + 日 : Mnemonic symbol: your very own annoying alarm clock going off in the morning.

The sun (日) is rising above Zorro's (z) alarm clock (早) in the aorta's living room (ao3), but Zorro just smashs it with a big cross (十).

士 = 十 + 一 : Sherlock Holmes (sh) is meeting the bachelor (士) in the bathroom of the space station (Ø4). Sherlock Holmes is playing a flute (一) for him, and the bachelor is wearing a huge cross (十) around his neck.

直 = 十 + 目 + 一 : Mnemonic symbol: someone straight edge. James II of England (zh) decided to go straight edge (直) in the space station's kitchen (Ø2), and he also decided that this means he won't listen to music anymore. The Eye of Providence (目) promptly plays some music on its flute (一) to tease him, whereupon the James II of England defends himself by holding up a cross (十).

卑 = 白 + 丿 + 十 : Mnemonic symbol: the Alps, 阿尔卑斯.

Beelzebub (b) was racing to arrive at the top of the Alps (卑) in front of the Eiffel Tower (ei1), but he slips on a banana peel (丿), tumbles all the way back to the foot of the mountain and has to wave his white flag (白) as another team sets up their cross (十) on the Alps. At the bottom of the Alps, Beelzebub feels extremely humble (卑) as he watches the huge mountains.

古 = 十 + 口 : Mnemonic symbol: at least on German maps, this character actually resembles a cloister.

Oh no! Gitta Giraffe (gu) found that the golden cross (十) broke off of the cloister (古) in the space station's living room (Ø3)! She skewers a mandarin (口) on top of the cloister so that she can skewer the broken off cross back on to fix it.

叶 = 十 + 口 : You could see the cross 十 as the leaves 叶 of the mandarin 口.

叶 = 十 + 口 : Maud Younger (y) practised a trick shot all day in the elevator's bathroom (e4). She's now able to throw a leaf (叶) high in the air, then quickly throw a mandarin (口) and beat the mandarin with a cross (十) like a baseball with a bat so that the mandarin rips a hole right into the leaf.

木 = 八 + 十 : Mnemonic symbol: a Christmas tree.

Malte Monkey (mu) is setting up a Christmas tree (木) in the bathroom of the space station (Ø4). He decorates the tree with eight-balls (八) and puts a holy cross (十) at the top of the tree.

单 = 丷 + 田 + 十 : In front of the anthill there are many, really a field of crosses because Don Quixote killed so many people on his crusades. Today is his judgement day: a mean crocodile reads the list of his victims to him, and Don Quixote is really 不好意思.