In a bowl, beat the cream cheese and olive oil until smooth.
Add goat cheese, green onions, garlic, dill, oregano, salt, and pepper, then mix well.
Chill the cheese mixture for 30 minutes.
Roll the mixture into 1 1/2-inch balls (small spiders) or 3-inch balls (large spiders).
Coat each ball in black sesame seeds.
Insert pretzel sticks (four on each side for small spiders, eight for large spiders) to create spider legs.
Wrap in plastic and refrigerate for at least 30 minutes before serving with crackers or extra pretzels.