I use this soccer-attendance for the kids in the morning. When they arrive at school they put the ball with their name on in the goal. When everyone has arrived, all the balls are inside the goal. Often I also take the time on the students. How many minutes does it take until we are ready to start?
You can also use this for other things. As an example the kids can score goals when they have completed certain tasks like reading or writing.
Good luck!