I like both the idea of
@TriangleAttack and
@TheDancingMonkey.
For the first suggestion (DancingMonkey):
At the beginning of a game of Eggwars, a ''team captain'' should be nominated. The team captain would be able to change the name of the team ONCE in the whole game. It would be a bit of a lucky one to get team captain but it would be fun.
For the innapropriate team name, there could be some words that can't be said, just like when you're typing in the chat!
For the second one (TriangleAttack):
Pretty straight forward and I like it. But like someone said, it could be hard to read it in the chat, but it is a really nice idea.