Fill a couple hundred balloons with helium and slips of paper redeemable for prizes or cash, or (10 percent) ‘Thank You Please Try Again’. The fundraising prizes can be a free Coke if Coca Cola is helping sponsor event. You could have an early bird prize about ‘Guess The Number of Balloons’. That could go on for a couple of hours, then the prizes start to be drawn. Fill a room with these balloons, so patrons walk in and find them-selves in a latex obstacle course. They can pull one balloon outside, you write their name on it with magic marker. Then they put it back until the end of the night. During the day, have patrons guess how many balloons are in the room. The closest wins a prize at the end of the day. Source: United Way of Inland Valleys (Riverside, California)
Variation: Put money into 100 helium-filled balloons and sell them for $10 each. Denominations: One balloon contains $100, two-$50.00, two-$20, two-$10, two-$5.00 and the rest $2.00. Sell all 100 and make a total of $548.00.