In a large mixing bowl, combine softened cream cheese, shredded sharp cheddar, chopped fresh chives, garlic powder, onion powder, and black pepper. Blend until smooth and creamy, about 3-5 minutes.

Gently fold in any optional mix-ins such as chopped roasted red peppers or crumbled bacon, mixing thoroughly to maintain a soft texture.

Scoop the cheese mixture onto the center of plastic wrap and mold it into a ball shape. Wrap tightly and refrigerate for 1-2 hours.

Once firm, reshape the ball into a pumpkin-like form, wrap it again in plastic wrap, and tie it with kitchen twine. Chill for another hour.

Insert a stem decoration into the top of the cheese ball.

Roll the cheese ball in crushed cheese puffs or shredded cheddar until evenly coated.

Optional: Garnish with fresh parsley or sage leaves and serve alongside crackers, fresh vegetables, or breadsticks.