Which is imo silly. War scythes were still just farming tools converted to weapons and should not be better at anything than a real polearm (Glaive, etc).
Rule of cool in play here, its a big creepy "reap reap reap" scythe not a war scythe which is just a cheap glaive in D&D terms.
For odd weapons, way before Xena I liked chakram. I've seen videos of them used by martial artists using IIRC traditional Sikh arts and they were silent and effective in formation or individually.
I also like the fanciful kligat type throwing irons (or the thing from Beast Master)
My hand weapon tastes are more prosaic though I do enjoy slashing daggers (lo,g knives) which weren't all that common in games