Parts of the male genitals

There are no neutral terms in the Russian language to describe the male sexual organs, only technical terms and vulgarisms. All of the synonyms shown below are extremely vulgar, and are not used in neutral style.
член Technical; пенис Technical penis
яичко Technical testicle
хер Taboo; хуй Taboo; палка Taboo prick, dick, rod
яйца Taboo; муди Taboo balls, nuts