Popcorn Salad

1 lb. bacon
1 can Waterchestnuts, chopped
3 to 4 stalks of celery, diced
1/2 large red onion, diced
1/2 c. to 3/4 c. shredded cheese
1 pkg microwave popcorn, popped and cooled
mayonnaise

Slice bacon into small chunks, fry until crisp. Drain and cool. Put bacon into large mixing bowl, add waterchestnuts, celery, onion and cheese. Mix well. Refrigerate until ready to serve. Add popped popcorn to bowl, but be very careful to take out unpopped kernels of popcorn. Mix in enough mayo to create a moistened salad, about 1 to 2 cups of mayo.