As far as grandma-pleasing gestures go, a thoughtfully written thank-you note from a child is pretty much the last word. Help teach young kids how to compose these sweet messages with this fill-in-the-blank form, modeled on the classic Mad Libs word game. Download and print out a copy, then let them provide the details. You can rewrite the words onto a note card or, for an easier and more fun option, simply send the filled-in form as is.