Preheat oven to 350 F and line two baking sheets with parchment paper.
In large mixing bowl, beat butter, sugar and vanilla until light and fluffy. Add egg and beat until combined. Add flour and salt; mix until dough begins to form ball.
Remove 1 cup dough and set aside. Add red food coloring to remaining dough.
From red cookie dough, make one 1-inch ball and five 1/2-inch balls. From plain cookie dough, make one 3/4-inch ball and five 1/4-inch balls.
On prepared baking sheet, place red 1-inch ball and gently flatten until 1/2-inch thick. Attach four red 1/2-inch balls for arms and legs. Attach plain 3/4-inch ball for head and gently flatten until 1/2-inch thick. Attach plain 1/4-inch balls for hands and feet. Shape remaining red 1/2-inch ball into triangle for hat and attach. Repeat with remaining dough, arranging cookies 2 inches apart on baking sheet. Add chocolate candies for eyes and buttons.
Bake 12-15 minutes, or until lightly golden.