I've been thinking about DMing a game that takes place "somewhere" in the starwars galaxy, the players are jedi establishing their own temple & deciding what's important to their player council. I'd encourage freedom of expression so players can be whoever they want, not required to be a jedi. Once i was doing a game, i had a player who wanted to be a gungan and everyone was like "oh nooo", but i was like "why not?" he managed to do the comic relief role perfectly, when his character spoke he did the gungan voice like a voice actor (this guy is like voice-actor good too) god help me it was hilarious, i loved seeing a Gungan with a jetpack flying around doing rescue operations alongside the more serious player heroes, sometimes things can be lightened up with a laugh, there's room for all kinds of characters.