In a large mixing bowl, combine cream cheese and shredded white cheddar cheese. Blend until smooth and creamy.

Add garlic powder, onion powder, and black pepper. Mix until fully incorporated.

Shape mixture into a ball about 6 inches in diameter using moistened hands.

Wrap tightly in plastic wrap and refrigerate for at least 1 hour.

Unwrap cheese ball and place on a platter. Use sliced black olives to create Jack Skellington's facial features.

Serve with an assortment of crackers and fresh veggies.