少許

少 = 丿 + 小 : Mnemonic symbol: 少 looks like a smiley face. There's a food shortage (少) in the aorta, and Sherlock Holmes (sh) and Smiley (少) are looking for food in the living room (ao3). There's only one banana (丿) left. Soon they'll have to eat the many daisies (小) which are growing there.

许 = 午 + 讠 : Xu Xian just loves having lunch in the space station. In fact he loves it so much that he calls mission control to get permission to praise it on an advertising column. After he got the permission, he smears his lunch all over the advertising column.