One of the appeals of star wars to me, as opposed to other sci-fi franchises, is how monstrous the aliens can be while still being sapient and capable of good and evil. Very few are just people-plus-one-wierd-thing aliens (Zabrak and Twileks being these exeptions). There have been a few restrictions though, with almost all aliens being humanoid and clothes wearing, and often a species is really just a human body with an animal head. This is largely due to the limitations of costumes. But now, with the advancements in both CG and practical effects since even the prequels, even the most bizarre design could be given life. My question is, how far out there can a sapient alien design be and still be believable to you? Similarly, should more animal designs be regulated as having animal minds? Would a Tauntaun member of government really be harder to accept than a wookiee? Note that I Don't really want tauntauns piloting ships, they've already been shown to have more animal style intelligence, while wookiees more like people. But if they were portrayed differently, would you buy it?