Been messing around with SpiralSpy in my spare time, seeing how weapons look if you make them use the textures of other weapons, and on occasion you get a result that actually looks pretty good! Here are the best 7 I've seen/made so far:

Reskin 1: Autogun+Blitz Needle
Not all that gasp-inducing given how they're two weapons from the same line, but still looks nice enough to be worth a mention in my opinion.

Reskin 2: Autogun+Polaris
Polaris Jr. anyone?

Reskin 3: Troika+Crusader Spear
Probably the best reskin out of the 7 here, both due to how it looks and due to what an odd pairing it was made from.

Reskin 4: Troika+Faust
The Eyes and the "TRON Lines" on the hilt give this weapon a very Swarm-ish theme.

Reskin 5: Troika+Overtimer Trident
Can't think of anything to say about this one.

Reskin 6: Valiance+Fiery Pepperbox
Would probably be a nasty weapon, given how the Fiery Pepperbox seems to glow red-hot when wielded in-game (what's worst than a Bayonet? a RED-HOT Bayonet!)

Reskin 7: Valiance+Supernova
I find it kinda funny that it kinda looks like the bayonet has "warning" tape on it now.

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If enough people like this I'll do some more. I know it's not as original as everything else here, but posting this in General wouldn't have made much sense.

EDIT: Made links easier to see.