In many lodges the two pillars have on top each a globe (sometimes a celestial and terrestrial globe) with network, hanging from which smaller globes which represent pomegranates. This element comes from the Bible from which more symbolism of King Solomon’s Temple comes. “And he made the pillars, and two rows round about upon the one network, to cover the chapiters that were upon the top, with pomegranates: and so did he for the other chapiter.” (1 Kings 7:13-22).
general design (non-Masonic) found online.