Buy a bag of baloons, and place in a bowl. Have each guest pick a baloon. Don't forget your hostess. Now tell them the first one to blow up the baloon, tie it and sit on it and pop it will win a prize. This is a great one to get them moving and laughing. They will have a great time.
If anyone has any great games you use and have a lot of success with, please share. Others could use your suggestions.