Use a food processor to process cheese crackers until finely ground.
Combine the cream cheese with cheddar cheese and chives.
Mold the mixture into a ball and flatten to resemble the shape of a pumpkin. Place in plastic wrap and chill for 2 hours.
Carefully roll the cheese ball in the cheese crackers.
Top the cheese ball with the stem of a green bell pepper.
Use a clean piece of yarn to create 4 pumpkin indentations, starting from the top down to the bottom.
Serve your pumpkin cheese ball with crackers, chips, or fresh vegetables.