The Croquet Mallet is a treasure that appears in the game Sly Cooper: Age of Thieves in the episode Alice in Cooperland. It is worth 157 coins and the time it takes to get it to the safehouse is fifty-four seconds.
"This fancy looking Croquet Mallet once belonged to the royal family. Given its unique design and emerald-encrusted sides, this mallet is nothing short of valuable...though you may want to refrain from actually using it in croquet."
The Croquet Mallet is located behind the Mock Turtle Midway. Sly must use the Mummy Costume to reach it.