Take a peek at the short prayers in the links above. Here's one favorite:
Come, Lord Jesus, our guest to be,
and bless these gifts bestowed by Thee.
Please bless our loved ones everywhere,
and keep them in Your loving care.
Share this prayer, then take a few moments, giving everyone a chance to wonder:
Who would you like to have as a guest at our table? Why?
I wonder what you would say are "these gifts"? From where did they come?
Let's name everyone we'd like to bless. (Even the ones that are hard to love!)
I wonder what we can do to show them how much we care?
And share the prayer again. Maybe write it out, decorate, and display it on the table!