Make Christmas tree ornaments from folded paper or old book pages. Add a piece of paper for a trunk. Punch a hole at the top for adding twine or ribbon for hanging. There are many printables you can use, some are Christmas songs - would make a more festive look. Christmas Cards, Vintage Paper, Old Books Pages, Folding Paper, Paper Christmas Trees, Book Pages, Gifts Tags, Paper Trees, Christmas Tree Ornaments
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Handmade trees would be a great addition to a card. But they look good to me as fans on a hot day at an outdoor party.