Incense! Incense is the best.
You can ground with it, cleanse with it, meditate with it, scry with it, charge sigils with it, accompany spells or tarot readings with it. You can pick scents that align with your intent. You can just wave it around and try and make smoke rings and call it meditation! It’s so cheap and versatile for witchcraft and innocuous enough for witches who can’t be open about their craft.
You can ground with it, cleanse with it, meditate with it, scry with it, charge sigils with it, accompany spells or tarot readings with it. You can pick scents that align with your intent. You can just wave it around and try and make smoke rings and call it meditation! It’s so cheap and versatile for witchcraft and innocuous enough for witches who can’t be open about their craft.