The best part of this yarn tree ornament DIY is customization! Try different yarn colors or textures for various looks. Add wooden beads, wood stars, or pine cones for decoration. You can make trees in various sizes and use different types of yarn. For a festive touch, incorporate a string of fairy lights. Feel free to add a tree trunk using a wooden dowel or a wood slice for the base. This versatility makes it a great craft for the holiday season.