Remember if you walk into the Ward of Dawn you ain't walking out
Re: Can Kankuro
He could but it would only be as affective as chiyo controlling Sakura or Sasori controlling shin (not very affective). Puppeteers activate the puppets hidden weapons by manipulating the wire/mechanism network within the puppet itself. Because Kankuro can't do that with a human body (asura path is still a human body) he can't use any of the weapons unless they are already outside of the paths body.
So in short he can, but his normal puppets would be way better.....