I've always been a fan of Non Bi-PaB droids ever since I saw Star Wars as a kid.Yup. Diversity makes more missions possible.
So while it's nice and practical to have Bi-PaB droids that actors can act in, having non standard Bi-PaB droids is important to me.
Who doesn't like BB-8 & BD-1?
One of the droids I want created is a "Centaur Droid" with a robotic Snake Tail that coils up like a telephone cord for compact space savings, but can extend to be super long like the longest snakes on Earth.
Having the body of a Centaur allows the functionality of a Bi-PaB, with extra stability & mobility of a horse & the versatility of a Snake Tail =D