That's amazing. Someone in your neighborhood must be a very good organizer:

"We need 1170 bags: 10 for 77 non-corner homes and 20 for for the 20 corner homes." 

"We get the white bags #8 size from Carpenter Paper and the candles are 10 hour votive candles from quickcandle.com. the sand is from Staker Parson on Beck Street. We buy 1/4 of a cubic yard."