Commit to purchase a certain number of tickets $20 – $100 worth. Invite donors to make a set donation (i.e $10) to ACS. You pledge 10% of your winnings to ACS and split the rest among your partners.
Bake off!
With the success of shows like The Great British Bake-Off, you should find it easy to get participants for this one! Get a panel of judges (or ask the public