Think of something ordinary and give it a horror story.
I like reading about objects like paintings, furniture and dolls which have stories of death and destruction behind them. I do wonder if there is some truth to it. Of course, people who tend to live with risk, take adventures and such, are likely to have accidents and die in crashes or even pick up diseases. So, you can’t take every story seriously and believe it just because you read it.
However, I do think strong emotion hangs around in places and objects too. There are places which give people a strange, out of sorts, feeling. There are people you meet and dislike right away, without any reason. Almost everyone has walked into a room where people have argued and felt that tension – without anyone saying a word. So it does seem possible something like that could stick around. Possible but I wouldn’t say I believe fully.
It does make a good story. How would you write it? What object or item would you pick? Was it stolen from an ancient site? Did it belong to a murdered woman? What was the tragic event connected to it? What happened to people who owned or used it since then? Pick an outline and give it a good story. Try to spook yourself with it.