Armored Nut

The Armored Nut is a treasure in Pikmin 2 that is actually a small acorn. It is found in the Wistful Wild inside one of the three Creeping Chrysanthemum. The Creeping Chrysanthemum that is nearest to the Hole of Heroes hold it. It is the 21th treasure on the List of Pikmin 2 treasures.

Captain Olimar's Journal
"I've never tasted a nut quite like this. It's difficult to explain, but it tastes like...sorrow.

PS: I can't shake the feeling that I've been here before. Aha! This must be the exact spot where I crash-landed last time!"

Sales Pitch
"This common, ordinary nut somehow reminds me of myself and fills me with sadness."

Trivia

 * As mentioned in Olimar's Journal, the Armored Nut is found in the place where the S.S. Dolphin crashes and lands in the Impact Site in Pikmin.