Matching Frilly Pink T-Shirts

Matching Frilly Pink T-Shirts is a treasure that wario obtains in Wario: Master of Disguise. It costs $935. It's No. 10. It is found in Episode 3. They are two shirts that have hearts on them.

Game description
A matching set of pink T-shirts that say "Look out, world! I'm filled with joy! Delicious, pink-colored joy!" The advantage of saying such a thing is debatable.