Pharaoh's Nose Hair
From the Super Mario Wiki
The Pharaoh's Nose Hair is a key item from Wario: Master of Disguise. It is one of the Pharaoh's three treasures that the Sphinx asks Wario to retrieve in exchange for important information during Episode 3, the other two being the Pharaoh's Underwear and Pharaoh's Pillow. It is found inside a purple treasure chest in an outdoor area of the Smithsnorian Museum accessed from behind the Sphinx.