Peppermint Jello

1 (3 ounce) box orange Jell-O
1 (3 ounce) box strawberry Jell-O
1 (3 ounce) box lemon Jell-O
3 cups hot water
3 cups cold water
3 (8 ounce) containers Cool Whip
1/2 cup crushed peppermint candy

Dissolve each Jell-O flavor in a separate dish, using one cup hot water and 1 cup cold water for each package Jell-O. When Jell-O begins to set, add 1 container Cool Whip to orange Jell-O. Place in refrigerator. When almost set, add strawberry Jell-O on top of orange. Then mix 1 container Cool Whip into lemon Jell-O. Put on top of strawberry layer. Add remaining container Cool Whip on top of Jell-O and sprinkle crushed candy over Cool Whip. Strawberry Jell-O is plain between the orange and lemon.