Being called a pom-pom in this group effort version of tag definitely raises the level of fun.
For more children, or older kids, increase the size of the playing field. This will boost the challenge—and the fun.
Mark off a playing field roughly 20 feet square with string, a sidewalk edge, etc.
One person serves as the "tagger" and stands in the middle of the field. Everyone else lines up on one side of the square, facing the tagger.
When the tagger calls out, "Pom-pom pull away" everybody starts running and tries to get to the other side without getting touched by the tagger. If caught, they join the tagger in the middle.
Now everyone is on the opposite side of the square. The taggers simultaneously call out "Pom-pom Pull Away," and the players run toward the opposite side, trying to evade the taggers. The last person remaining untouched becomes the tagger for the new game.