I recommend getting a friend you know for this. One teammate will instantly get to work throwing small candies over the "DO NOT THROW" wall and using the lever once they get all that's there. The other teammate will try not to let the other team get the gummy bear, but also make sure none of their teammates get it either. (Only knock out your teammates that are trying to drag the gummy bear if you are sure you guys will win, ex: you are close to winning.) Once you get really close to winning, abandon the gummy bear and only get the candies. At this point, it doesn't matter if the other team gets the gummy bear.
To be extra careful, having a 3rd person with the plan will be best, to make sure the other team won't also get small candies, and to also make sure the other team won't get the gummy bear.