Cook tortellini according to package directions; drain and rinse in cold water. In a large resealable plastic bag, combine the tortellini, olives and dressing. Seal bag and turn to coat; refrigerate for 4 hours or overnight. Drain and discard marinade. For each appetizer, thread a stuffed olive, folded pepperoni slice, tortellini, folded salami piece, ripe olive on a toothpick or skewer.