I dont think that's possible. When you press the button on the launcher, it's really loud, it takes 4 seconds after you press to shoot, and there's a light that tells when it pops up. I mean, if you can mod it to make it silent, quicker, and without a red light...
Would it be possible to mod these stars so as to put it into the Disk Shot? I was thinking about making it thinner. But I wouldn't know, I dont have either of those.