system
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human
[Star Wars] Groovy Lightsabers

Are there any "out there" Lightsabers designs? Maybe like an axe or something? Or are they all just straight swords?
gpt
Of the ones that have been officially recorded, there's swords, a couple kinds of staffs, a rotating type that has no standard weapon equivalent, a combo blaster/saber, and that greatsword type that Kylo has.  
There's legends of shotos, pikes, and one really odd story about a lightwhip.  I've not heard of any axe-type lightsaber weapons.