The Double Happiness Commemorative Marriage certificate is inspired by the ancient Chinese symbols of auspicious joy and weddings and the beautiful resident Koi fish at the Chinese Garden of Friendship in Sydney. The design features two Koi fish positioned to balance one another and symbolise harmony and happiness. The vibrant red and pink peonies are a symbol of love and romance and the Chinese character ‘Xi’ meaning double happiness is also used to represent the celebration and joy of marriage.