Once you reach 100 in any area of training, you will be given a mascot's head for use in the 24/7 mode.

3PT: Benny the Bull (Chicago Bulls mascot)
BallHandling: The Raptor (Toronto Raptors mascot)
Passing: Sly the Fox (New Jersey Nets mascot)
Dunk: Blaze (Portland Trailblazers mascot)