We have an established tradition to represent sexual characteristics with fruit. 🍆, 🍑, 🍈 🍈.
To be fair, I whenever I go to market and see the eggplants, I feel inadequate. Also in the last decade many of the more classical substitutes have emerged in the emoji library. 🌶️, 🥒, 🥚🥚, 🌮, 🍪, 🎂, 🎃🎃