If they tell you not to bring in anything for the children (toys, candy, etc.), bring them in anyway and deploy them.
When I was growing up, there was a brother that always had candy in his pocket for all the kids in the hall. He'd distribute it after the meeting was over. Later on, he ended up getting disfellowshipped and us kids were so sad that we wouldn't be getting candy anymore from him after the meetings. . . wonder where he is now.