Instead of throwing out those puzzles with missing pieces, let your kids turn what's left into a cast of holiday characters.
Paint the puzzle pieces with acrylic paint. Once they're dry, draw or glue on distinguishing features. We used dimensional fabric paint, pom-poms, mini googly eyes, and a fine-point permanent marker.
Turn the creatures into tree ornaments by gluing loops of monofilament to the backs, or attach pinbacks so you can give a backpack or sweater a little holiday flair.