Many places offer party packages, inquire and compare before you make your final decision about which place will work best for you. Decorations come next. These are a must to complete your party atmosphere. Streamers are a popular decoration. They can be draped or taped anywhere you desire.
Balloons are another party favorite.
Renting a helium tank at your local party store is a great investment that saves having to blow them up one by one. You can select a variety of colors as well. Christmas selection might be green and red. Halloween, orange and black. Valentine's Day, red.