Divide your crews into two teams. For large crews you can set up multiple lanes. Each set should have three rounds (so adjust your teams or the workout to meet your needs).
During each round, each pin is worth a certain number of a certain workout. If the pin gets knocked down, those reps go to the other team. If the pin stays upright, those pins go to the team that is bowling. If someone lets go of the hose while bowling, the reps are doubled and go to the bowling team.
Here's your rounds:
Pull ups: 2 reps per pin
Push ups: 4 reps per pin
Sit ups: 6 reps per pin
So for round one each person that bowls has 10 pull ups they are playing for (2 pull ups for 5 pins). If you knock down 2 pins, then your team still does 6 pull ups and the other team gets 2 pull ups. Then the other team bowls still going for pull ups. So total for three bowls per team per round there are 60 pull ups, 120 push ups and 180 sit ups that will be divided between the teams.
The best way is to play the whole game and then everyone does the pull up, push ups and sit ups at the end.