could pick up the thrown ball and be a second “it”. to keep them from fighting over the ball, whoever touches the ball first is “it”, and if someone touches it second, then they are immediately frozen. also…the two people who are “it” can attempt to freeze each other.
the challenge for the person who is “it” is to freeze all of the kids at the same time. the challenge for the kids is to learn to not clump together. it’s a lot more challenging and fun when they stay separated…makes the person who is “it” have to work harder. 