“Iambe’s themes are communication, creativity, art, humor and playfulness. Her symbol is any paired items. Iambe means ‘speech’, indicating this Goddess’s intimate connection with the art of communication. In Greek stories, Iambe always had a witty (and sometimes satirical) comeback. This may be why She was credited with creating the writer’s bane of iambic pentameter verse (a metered verse with two distinct accents). In mythology, Iambe used this form of poetry to cheer up Demeter, with tremendous success.
Astrologically, the twins personify individuals who have dual natures: they are filled with charm and creativity but also seem elusive, like Iambe and Her poetic method. You can remember Iambe and learn more about Her style today by reading Shakespeare, one of the few humans to master it (or perhaps rent one of the recent Shakespearean movies)!
If that’s not your proverbial cup of tea, use this invocation to Iambe as a prayer, part of a ritual, or whatever is appropriate for you:
‘Iambe, I sing your mystic poems.
From dots and tittles, the magic’s sown.
With celestial pens, you scribe each spell,
and lessons in joy, may I learn them well.
Iambe, your metered muse confounds,
yet where’er it’s spoken, magic abounds,
full and fierce, potent and free,
and when I hear it I know, that the magic is me!’
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
“Homer called Her Iambe, but She is best known as Baubo, the elderly servant of the King of Eleusis, whose bawdy jests roused the grieving Demeter from Her profound depression during Her search for her daughter, Persephone, who had been abducted by Hades. (And just how did She cheer up the grieving Demeter you ask? By pulling up Her dress and making Her laugh at Her vagina and belly. From then on, Baubo has been celebrated as a symbol of bawdy female humor and is usually depicted as a face just above the vagina with two chubby legs, causing ruckus with no underpants and making everybody laugh.) 
Other than Her appearance as Baubo in the myths of Demeter and the abduction of Persephone, little is known of the Goddess Iambe.
Indeed Iambe’s name has survived even though Her legends have not fared so well. We recognize Her name, for it is ‘She of Iambic Pentameter Fame’, the da Dum, da Dum,da Dum rhythm that we hear in some of the world’s most popular poetry and song, not to mention the works of William Shakespeare. ‘To be, or not to be’ is a good example.
Iambe was married to a swineherder. Perhaps that doesn’t sound very fancy today, but it may have been quite a lucrative occupation when acorns were in abundance as a free source of feed for the livestock of the region!
Her sons all rose to prominence. One was a famous warrior and another the high priest of the religion of the followers of Demeter.
Iambe was worshipped in many of Her guises, long before the Goddess Demeter taught humans how to grow grain, a time when the magnificent Goddesses of vegetation fed their subjects with the berries, acorns and fish, not the fruits of the harvest.” 
Wikipedia states “Iambe in Greek mythology was a Thracian woman, daughter of Pan and Echo and a servant of Metaneira, the wife of Hippothoon. Others call her a slave of Celeus, king of Eleusis. The extravagant hilarity displayed at the festivals of Demeter in Attica was traced to her, for it is said that when Demeter, in Her wanderings in search of Her daughter, arrived in Attica, Iambe cheered the mournful Goddess with her jokes. She was believed to have given the name to iambic poetry, for some said that she hanged herself in consequence of the cutting speeches in which she had indulged, and others that she had cheered Demeter by a dance in the Iambic metre.” 
Goddessgift.com, “Iambe, Greek Goddess of Humor and Poetry“.
Schramm, Adriane. Vice.com, “Baubo, the Vulva Clown“.
Baubo’s Garden, “Who is Baubo?“
Boyd, Tracy. Sacredthreads.net, “I AM BAUBO, THE ACORN FOOL“.
Goddessgift.com, “Baubo and Iambe“.
Goddessgift.com, “Demeter, Greek Goddess fo the Bountiful Harvest“.
Her Cyclopedia, “The Goddess Iambe“.
Revel, Anita. igoddess.com, “Baubo: dance like no-one is watching…“.
Revel, Anita. igoddess.com, “Iambe: playful is as playful does“.