YOUR PARTY STARTS HERE! Flying Cow Party Essentials is your local neighbor supplying you with your party rental needs. We aim to make every event special - just for you. If you are having a get-together and need a few chairs, a backyard birthday party, or the gala of the year; we have just what you need. We strive to provide affordable, quality products, and reliable services to assure that your next occasion or event is just what you were looking for. Serving the Boston and surrounding areas for rental needs.