Wow, great topic-trip down memory lane. Alright, prepare to enter THE TWILIGHT ZONE.
-In my country, couples traditionally have some sort of wedding crowns put on them by the priest during the religious wedding ceremony. So, a such couple of relatives who had later converted to jws, accommodated one day my mother and her sister to their home, days after their baptisms. Both my mother and aunt supposedly witnessed demonic attacks during the night. Pain chests, unable to breath etc. I suppose it was some sort of night-terror or something; but they curiously witnessed it both, at least allegedly. Anyway, they searched the next day for anything in the house that could have had demonic influence, and they determined that the only such item left from the days before jw conversion would have been the wedding crowns. After they got rid of it, they supposedly weren't 'attacked' again.
-A magic charm my grandfather was given at his wedding day. He was told that if he destroyed that talisman he would die. He was not a jw then. Back in that day, rural villages were filled with superstition and amateur charmers. According to him, that charm caused him great physical pains and corroded his marriage. 20 to 25 years forward, when we was Bible studying, when they reached the part in the book about getting rid of any charms and stuff, he was afraid to destroy it. With the help of his teacher, they tried first to burn it, but it wouldn't burn. In the end, they managed to break it to pieces. After that, his pains ended supposedly.