Which of the following is not part of a standard dining setup?

In a standard dining setup, the purpose is to create an organized and functional table that facilitates dining. Each of the items listed typically serves a role in this setup. Service plates, cups and saucers, and utensils like forks and knives are essential components for serving and consuming food and beverages.

Napkin rings, while they can provide a decorative touch or be used to hold napkins in a neat manner, are not considered a standard part of the dining setup across all dining contexts. They are often optional and more commonly used in formal settings rather than everyday dining. This distinction highlights that while napkin rings can enhance the aesthetic of a table setting, they are not a fundamental necessity compared to the other items listed, which fulfill essential functional roles in a dining experience.