A memorial plaque, or commemorative plaque, is a plate of metal or stone which can be attached to existing memorials, or to a base such as concrete or natural stone. In metal, we usually work in Bronze. With Stone, we usually work in Granite which is available in all standard colours.
Plaques come in a variety or sizes, but are generally smaller and simpler than headstones. Your size may be dictacted by where it is going, so our first question will be where it will go. 
The plaque will typically have inscriptions including the name of your loved one, as well as a personal or sentimental message. We can also include symbols and pictures, depending on the size. 
Plaques, like headstones, can be for a single person, or more than one.
Plaques may also be called panels or tablets.