When You have taken classes with us and they are actively practicing selected tantric procedures, you may choose a yantra to help your recent exercise.  Mohinī (मोहिनी, “fascinating female”):—Title of among the sixty-4 mātṛs being worshipped in the course of Āvaraṇapūjā (“Worship from the Circuit of Goddesses”, or “Durgā’s Retinue”), https://www.youtube.com/@Mahavidyabaglamukhi