Heat oven to 375°F. Lightly grease 2 large cookie sheets. Stack pepperoni slices; cut out small wedge from stack so each slice resembles reindeer hoof print. Set large pieces aside; reserve small cut-out pieces.
Separate dough into 8 biscuits; place 4 inches apart on greased cookie sheets. Press out each to form 6-inch round. Spread 2 to 3 tablespoons sauce on each round. Sprinkle small cut-out pepperoni pieces over sauce. Sprinkle each round with Cheddar cheese; sprinkle each with mozzarella cheese. Top each with 4 pepperoni "hoof prints."
Bake at 375°F. for 10 to 12 minutes or until edges are golden brown and cheese is melted.