Now, I'm not the biggest fan of the Star Wars expanded universe. I will, however, concede that some of the Star Wars stuff outside of Proper Canon (the films, Battlefront II) can be cool. The same, sadly, cannot be said of the Yuuzhan Vong. Now, they've got their problems, and they are many, but a lot of it can be explained by realising that they're based on a bunch of unused concepts from non-starter 2nd Edition AD&D campaign settings (Dark Sun) and much the work of notorious Drow-fetishist R.A. Salvatore who NEVER REPLIED TO MY EMAILS ABOUT THE SPOW, WHAT ARE YOU TOO GOOD FOR US NOW?
Anyway, to smooth over the fact that they are space drow, they also incorporate a little bit of Spelljammer's technology and they made them look like orcs.
I like to imagine them actually coming out of a Star Wars RPG session - I can see Pete DMing, Mike and Tony playing their Twi'lek con artists and Trandoshan bounty hunters and whatnot, and Phil comes in asking to play a character from a previous campaign. Pete's not paying attention and so things go well until there's a fight, blasters are drawn, and Phil's all "I quaff a potion of Giant Strength and ready my keen longsword +3!"
At that point, you either politely mesh it in or just pause and say, "I think I'm going to need to see your character sheet".
Not sure where that's going. It's late and there's a cat.