lucky / giga- (meaning billion or 10^9) / surname Ji / abbr. for Jilin Province 吉林省[Ji2 lin2 Sheng3]
吉
=
口
+
士
:
Mnemonic symbol: "Giga" apparently stems from a Greek word for "giant", so I'll represent 吉 by a giant.
The giant (吉) just entered the space station's kitchen (Ø2) and is very hungry. In each hand he holds Joan of Arc (ji) and the bachelor (士) captive and robs them for their mandarins (口) which he longs for.
尔
=
⺈
+
小
:
Mnemonic symbol derived from the components: a peace dove. Albert Einstein (Ø) wants to send a message of peace to earth from the space station's living room (Ø3). He wanted to give a dove (尔) a daisy (小) so that it can bring it to earth, but the dove is late! Albert has no choice but to give it to a passing crane (⺈) instead. Thus, the crane flies to earth with the daisy in his beak, just like a peace dove.