9th Anniversary Willow Gifts. The 9th anniversary celebrates strength and flexibility, which is why Willow gifts are given. Celebrating your ninth wedding anniversary should be full of love, a time to get romantic and celebrate nearly a decade together. Let MyGiftGenie help you out with our range of 9th anniversary willow gifts; or to ensure that you never forget any of your future anniversaries, why not sign up to our free anniversary reminder service?