How much can a champion's weapon change in a skin?

Like, could Jhin wield a knife?

Twitch changes from a crossbow to a gun, but I suppose they're both still the weapons of a marksman. But by that logic, would Twitch work with thrown weapons? Where is the line? Is it just what feels right?

Kayle already has a "ranged" sword, so it's not an alien idea.

I mention Jhin because he really reminds me of Jack Slash from Worm (not visually - just mannerisms and attitude, Jhin moves the way I imagine Jack does... to the extent Jhin now voiceacts Jack in my head). Jack Slash is a super villain with the power to extend the cutting edge of blades, and is a ranged combatant despite how he appears - and I'm just imagining Jhin flourishing a switchblade and slicing someone at range. The animations wouldn't even need to change (well, except maybe the ultimate).

Design is my passion and I want to create a full mockup piece for a Slasher/Slaughterhouse Jhin skin, and while I think the two characters will fit together thematically, there's gameplay issues with the skin (and I wanna design realistically). One issue is that Slaughterhouse Jhin's basic attacks wouldn't have projectiles - which has a gameplay effect, at least versus Yasuo and Braum.

... I don't know. Mostly rambling. http://i.imgur.com/9mQbPIf.png

"You inspire me!" "Symmetry's so boring."

Anyone else read Worm?