Cute branch decorated and hung in the window
DIY Pinecone Star Tutorial --- paint & glitter pine cones --- or use different type of decor. Large stars, hearts, small embroidery hoops with different colored fabrics (or framed photos)
festive chalkboard tree - great sustainable advent calendar idea - each day kids wake up to another ornament drawn on. Solidifies the idea that I need to use chalkboard paint somewhere.