Cool Vest, Lite Weight

At last, a way to keep cool while wearing a hot Mascot Costume!
Clue: kold, mascot

Too much candy? There's no such thing! Have more, more, more!
Clue: Oompa, Loompa, Oompa Loompa, Willy, Wonka, Willy Wonka, Charlie, Chocolate, Factory

Red and Black Clown Costume.
Clue: Clown, humor