Begin by mixing the cream cheese, fiesta ranch dip mix, shredded cheddar, green onions, and diced bell pepper in a bowl until the mixture is fully combined.
Shape the blended mixture into a spherical or pumpkin-like form, wrapping it securely in plastic wrap, and refrigerate for around 2 hours until firm.
While the cheese ball is cooling, place the cheddar chips in a plastic bag and crush them finely with a rolling pin.
Once firm, take the cheese ball out of the fridge and coat it thoroughly in the crushed cheddar chips, using the saved bell pepper stem as a decorative touch on top.
Finally, press the yarn into the sides of the cheese ball, creating lines to resemble a pumpkin, and serve with crackers, chips, or fresh vegetables.