Star Piece
From Paper Mario Wiki
Star Pieces are items in the Paper Mario series that can be traded in for badges.
In the first game you would trade with Merlow of Shooting Star summit who was found to the right when you enter Shooting Star summit then go into the house and up the stairs and you could find him.
In the first game there were 164 starpieces.
64 through Chuck Quizmo
15 through Koopa Koot favors
11 through Delivering Letters
3 through Rip Cheato
71 through Finding them in the overworld.
In the second game you would trade Badges with Dazzle a blue dude that could be found to the left of Rougeport sewers when you enterd.
In the third game there were no star pieces.
