An American woman who ascribes to Islam from the city of Pittsburgh was banned from al-Masjid al-Awwal (the First Muslim Mosque of Pittsburgh) in 1435 for possession of magical items.

Her identity is mentioned with more details here: http://firstmuslimmosque.com/2015/11/05/warning-against-a-magician/

She thereafter enlisted the help of a man to write a seemingly scholastic PDF in her defense, quoting reliable scholars about harmony among Muslims and shunning extremism. However, this was a mere smokescreen, as upon investigation, the author himself was found to be a student of various forms of demonic magic himself, and doubts about her involvement with magic and other magicians became crystal clear.

We offer this open warning as advice to our Muslim brothers and sisters in Philadelphia and elsewhere, hoping they would avoid this woman and warn others to avoid her as well, as her harm is potentially serious, by the Permission of Allaah.

For your safety, we advise that you do not consume foods or drinks that she prepares, wear necklaces or bracelets that she has given or sold you, nor allow her access to any of your personal items or those of your family members. Of course, the best course of action is to keep your distance in general.