[quote=Tyki]
add super strength and they will cut right through some one at a fair distance
[/quote]

They're small and light, lacking any true punch, which means that even with super strength, even light armor would deflect them. A much more effective throwing weapon woudl be a throwing dagger, or even a kunai. Of course, you could be going simply for the cool factor, like with Shikaru's Gunblade.