I did a search but couldn’t find anything about this, so thought I’d post, having been today. https://www.ashmolean.org/spellbound It’s an exhibition about witchcraft and superstition over the centuries, with some amazing stuff on show. Highlights included a crystal owned by Dr John Dee, a human heart in a lead casket, and a poppet from the early 20th century. The highest of high points for me was a length of material that Helen Duncan had apparently used as “ectoplasm” in a seance held in the village where I went to school (strange coincidence thread, perhaps....?) Well worth a look!