From Pikipedia, the Pikmin wiki
The Essential Furnishing (メタリック・インテリア?, lit.: "Metallic Interior") is a treasure found in Pikmin 2. It is actually a reflective Christmas tree bauble. The treasure is buried in the first sublevel of the Frontier Cavern. To retrieve it, dig it up with White Pikmin and carry it to the ship. Although its positioning is somewhat random, it is normally located in a seemingly empty peninsula in the cave, and guarded by a Hairy Bulborb.
“This object sparkles beautifully. It's enormous, but I think it would make a great party decoration. That reminds me of the last time my family threw a party. I was busy at work, and I couldn't make it, so my wife and kids enjoyed the party without me. Hrmmm... My family grows further and further away each day...”
“According to our marketing survey, this is the year's hip product! Focus tests don't lie! Interior furnishings that create a laid-back atmosphere are all the rage with Joe Hocotate!”
Names in other languages