He takes a few and pops them into his mouth. Fortunately? No gold teeth to be seen.

"See, now that I would have liked. Why couldn't I get a miniature living breathing dinosaur instead of hair that would probably make Inara turn green? I mean, look at this." Wash grabs a chunk of hair and holds up the ends of it, somehow managing to give the impression of flailing without actually, y'know, flailing.