16th Anniversary Wax Gifts. Celebrate your 16th anniversary in style with a wax gift. Wax and candles signify the romance and burning flame that you have for each other. Celebrating your sixteenth anniversary should be full of love, a time to get a little romantic not panicking over last minute gift ideas. Let MyGiftGenie help out with our range of 16th wax anniversary gifts that will help to celebrate 16 years together, and to ensure that you never forget any of your future anniversaries, why not sign up to our free anniversary reminder service?