You can include ceasar salad, and garlic bread, and some gingerale to drink. Charge admission to the dinner. Variety Night - Organize several teams of youth and adults to put on a talent night. Charge admission to the show, and provide refreshments afterward. Be sure to order the t-shirts in adult sizes and kids sizes.
People can buy t-shirts for themselves.
Then, advertise for people to buy kids size t-shirts, only instead of keeping them, they can be given out as prizes in the kids program. Be sure to mark up the price of the t-shirts, in order to make a profit. If you have a band or worship team, have them work on making a tape. It doesn't have to be professionaly taped. Practice 10 songs until they are really good.