I think a Thunder Lord skin would be amazing for Jhin, cos he has so many loud, sudden noises and A LOT of burst.
W and R shots could be thunderstrikes
E could create a cloud that strikes down lightning.
4th shot could have a thundery sound and maybe even have thunder striking down on the target.
He'd be in the Thunder Lord skin line, as the name suggest.
P.S It'd be cool if he'd have a cape or something like that.