Select an area of play and place a numnber of cones in this area that will act as the bombs. Each student will start the game with 10 points. Students will be instructed to dribble the ball around in this area while trying to avoid touching the bombs with their hockey ball, their hockey stick or their feet. If a student does touch a bomb they lose a point. 

If students are finding this activity too easy get them to dribble the ball faster and as close to a bomb as possible. If they are finding it too hard get them to slow down and not go as close to the bombs. 

Once the students have had a practice at this, add in two defenders. These defenders will use their hockey stick to try and hit another students ball away. If they do that then that student will lose one point. 

To make the game more competitive you could make it an elimination round. Where each student only has one point, meaning that they will be eliminated if their ball, stick or foot touches a bomb, or if the defender hits their ball. Continue until you have one remaining player and they will be the winner.