Harley Davidson Party Supplies and cake decorations. Harley-Davidson "The King of the Road". A beloved brand for over 106 years. Enjoy this Harley Davidson party theme with the classic orange-and-black colors. Live to Ride - Ride to Live. Also be sure to check out our color coordinating solid color partyware. This party theme has been discontinued by the manufacturer - some items are only available while supply lasts.