You will need two dice for this activity. I bought two big Styrofoam cubes and painted them to look like dice.
At the beginning of the exercise group, brainstorm with the participants various exercises to do. This might include sit ups, push ups, calf raises, burpees, lunges, jumping jacks, plank, leg lifts, etc. Assign one to every value on the dice (2-12).
Turn on some fun, upbeat music and let the first person roll the dice. Based on what he rolls, do the corresponding exercise. Continue until everyone has had a turn to roll the dice at least once!