Last year we brought you 6 eco-friendly Christmas tree ideas which proved very popular, so here are 6 more eco-friendly Christmas tree ideas for you to try out, from our Pinterest board. The cork tree. Collect old wine bottle corks {of which there are a plenty at this time of year!} and pin them together in the shape of a tree. Add lights and a star on top to complete the look. Use an old ladder or a modern decorative ladder {see below}. Add lights and decor and voila an eco chic tree! To create the bark tree, collect fallen tree bark, arrange in the shape of a tree and glue them together with eco-friendly glue. Adorn a big tree in your garden with outdoor LED lights and tinsel. Arrange shelves in the shape of a Christmas tree and just add decor. The shelving can be used in a bedroom or home office after Christmas. Paint a wall with chalkboard paint and then draw on it, your own unique Christmas tree and decor. Wipe it off with a damp cloth once the Festive Season is over.