Here is an interesting icon. Painted by a Russian Orthodox icon painter in collaboration with a Catholic priest. It is a beautiful image. The image is, in part, inspired by one of the Immaculate Heart of Mary. In order to accomodate the sensibilities of the Orthodox painter, the image doesn't show a picture of a heart, but show's Mary pointing the the word Sense (Heart) where her heart would be.  

You can read more about the development of the image here.