Your local treatment cnerets or churches may be able to help contribute financially or maybe provide a location to hold such events. Depending on the specifics of the people participating, (are they mostly men, women, young people, etc.) a good idea is always a barbecue. Many local parks have pavillions that can be rented for a very small amount of money. Then just ask people to bring food, provide water guns for any kids that might show up, and have fun! One even that I thought was fun was an all night pajama party. One time we had an all night scavenger hunt that had us all running to Orlando, Daytona Beach, Disney World, and back again to find funny things. We broke up into teams to do it and gave away registration to a convention as prizes. We've done a lot of social events such as these so if you want to swap some ideas, email me. . Good luck to you!