勇
=
力
+
甬
:
Yu the Great (yu) has to show her courage (勇) inside of the engine ((e)ng3). While standing next to a yongzhong bell (甬) she'll push its power button (力) for a dare.
足
=
龰
+
口
:
Mnemonic symbol: a football. Zapatista Zebra (zu) wants to pimp his football (足) in the space station's kitchen (Ø2). He thinks that a few more vitamins wouldn't hurt, so he extracts the vitamins from a mandarin (口) with a syringe (龰) to inject them into his football.
Characters with 踴 as component
踴
is not used as a component in another character.