http://www.bbc.co.uk/news/uk-england-hampshire-24419383 (http://www.bbc.co.uk/news/uk-england-hampshire-24419383)
Unsettling painting of a malevolent-looking crone, apparently giving the evil eye, is anonymously mailed to elderly patriarch. His wife is terrified and refuses to have it in the house. Expert opinion says it is 200-300 years old. The mystery is "solved" (but not really) when a relative from Australia claims he recognises it from his uncles' house when he was a child.
I kept a copy of The Hands Resist Him in my file folder when I ran Unknown Armies, just for inspiration:
(http://www.thegreenhead.com/imgs/haunted-ebay-painting-hands-resist-him-1.jpg)