5 Unique names seems to get you under the radar, so to speak, it's less obvious.

I looked up some of my names, they're related to each toon's class, and are old irish names or names from Irish lore.

You could also look into Greek mythology, or Norse, or Indian, or any number of lore books.

I read somewhere, using band names and albums - the example was Guild Name: Pink Floyd, toon 1 Animals, toon 2 TheWall, Toon 3 DarkSide, Toon 4 Liberty Bell, etc...

I always thought it would be worth a laugh or two to have a guild called Baseball, and have Pitcher, Hitter, FirstBase, SecondBase, ThirdBase, Foul, Strike, Run, etc...

Or you could go: Shedidit, Nuhuh, ImTelling, Shutup, Stoptouchingme....guild name? Mom.