Do you dream of having your child's birthday party for very little money? Want to let your kid to have some unstructured play and have fun yourself? Unfortunately in New York City, it's not as easy as that. Space is expensive. Parties often require careful planning and arranging. Buying party favors, gift bags, invitations, thank you notes, paper plates and table cloths seems to be the norm. Most party spaces are packaged with activities and entertainment is included. Small groups, like large groups, are not easy to plan for within the NYC party venues world. Want to step away from all the hassles? Here's a quick idea for a cheap and easy summer party.