[2] Typically the character "囍" is written in Chinese calligraphy, and frequently appears on traditional decorative items, associated with marriage.
The double happiness symbol is often found all over wedding ceremonies, as well as on gift items given to the bride and groom.
[3] Nowadays shuāngxǐ (alternatively transcribed shuang hsi) is used as a brand names for things like fashion, jewelry, cigarettes, matches, soy sauce, etc.
It is also featured as decoration on many items by Chinese luxury brand Shanghai Tang.
designs many products themed with the double happiness symbol, including scented candles, accessories and Ming-inspired tableware and tea sets.