The Unseen Guest

I've heard several folks say they recall having seen the words below inscribed on a plaque and hanging in their parents' home or their grandparents' home--usually near the kitchen or dining table. However, I don't recall having seen it anywhere (other than on the Internet when I Googled the words). That's a shame because we need to be reminded again and again of the truth found in this little verse:  

Christ is the Head of this house,

The Unseen Guest at every meal,

The Silent Listener to every conversation.