Shakes earned his third Big Ten weekly award of the season, while Mangione earned his first.
Stevens is coming off one of his best seasons in the NBA, averaging 5.3 points and 3.3 rebounds through 62 games played.
The Nittany Lions are 6-0 and are coming off a 63-0 victory over UMass Saturday. Penn State will take on Indiana following its highly-anticipated matchup with Ohio State.
Mulaney is best known for his work with "Saturday Night Live" and Netflix comedy specials "The Comeback Kid" and "New in Town."
O'Hara, who plays both tight end and defensive end in high school, will likely play tight end for the Nittany Lions.
The pumpkin giveaway leads up to the Arboretum's annual Pumpkin Festival beginning October 6.