Hell, most bro-nos are afraid of brushables.
I actually kind of prefer the non-brushables, because I'm too lazy to dig up the hairspray to make their hair anything even resembling show-accurate, but the brushables don't look BAD--a pony in need of some gentle brushing or detangling's got NOTHING on a badly cared for Cecile, for example.
Though I'm really not happy with the brushable aspect of the Build-a-Bear ponies; like their actual target audience of little kids, I take my stuffed animals to bed, and synthetic hair that isn't uber-expensive isn't very comfortable on bare arms. Plus, if you don't braid their hair or something (which I really should...) their manes get to be an absolute tangled mess.
Among my weirder hopeful craft projects: a ponified Sonic the Hedgehog. Believe me, his mane and tail will NOT be brushable!