Take two old, but clean, knee-high gym socks and stuff each sock with another sock. The contestants must remain within these boundaries during the game. Gladiators compete by swinging their war socks at one another, each trying to land the first blow. For safety, provide goggles for the players. A referee decides who struck first.
Tournament play works well, with the winner moving on to fight again.
Or you could play best of three rounds. Now write some Bible verses on plain white paper and make as many copies of those sheets as you have teams. Cut the sheets of Scripture into long strips a little wider than the shredded paper ribbons. Keep a master copy of the passages so you can correctly assess each group s answers at the end of their search. Divide the paper as best you can into equal piles, one per team of four to six students, and mix the verses into each paper pile.