Place one image on another image (photoshop)

Would like to place a tombstone image with words inscribed in it (too make it look like the actual words are inscribed in the tomstone) The image of the tombstone will then be placed on a headboard of the bed. The key is to make it look like a real item not something that was Photoshoped I need three images done. 1. a stand alone headboard of a bed that would look like a tombstone headboard 2. a headboard tombstone design with entire bed in it 3. the tombstone headboard attached to bed in a room. basically image on image with touch ups