You can make customized silicon bracelets with an influential message or the name of your group on them. They are cheap to order in bulk quantities, and you can sell them for a low price of $2 while still getting an abundant profit of 50 percent or more. An example of a successful wristband campaign is the very popular "Livestrong" Lance Armstrong campaign.
Hold a large organization for a battle of the bands. You can advertise to have various genres of bands play and charge an entrance fee for bands to participate. You can also sell tickets to the event, raffle tickets and even operate a concession stand that sells beverages and snack foods.
You can also run a bingo night. The only requirement is a big room with plenty of tables. Download and print your own bingo cards and then assign one person to be the bingo caller. Paint ping pong balls different colors and write numbers on them for the caller to use. You can charge people for an entrance fee and use prizes that are donated from members to reward the winners.
A fun, exciting way to get people up and moving while raising money is to hold a dance marathon. The dance marathon can run for 24 hours, with participants getting sponsors to support their efforts. Thousands have been made in dance marathons in the past.