Part of your twine will be coming up through the hole and the other end will wrap around the side. DIY Milk Carton Birdhouse This image courtesy of theseamanmom.com. Save your lid. Next time you finish a carton of milk, rather than throwing it away, dress it up to be a fancy bird house! Set your lid aside. DIY bird houses are a great way to add some decor to your yard. DIY Milk Carton Bird Feeder: A Cool After School Activity. Feb 25, 2016 - Kids make this simple bird house craft from milk cartons and tempera paint. In a well-ventilated area, place your milk carton on a drop cloth. If you do not want to invest too much time, then keep it simple, without any showy decorations. Using a clear sealer, spray a light coat over the entire bird house. You know what they say, "reduce, reuse and recycle!" How To Make A Milk Carton Birdhouse. How To Make A Milk Carton Birdhouse. Re-use old milk cartons and make a cute birdhouse out of them! Poke a hole through the top of the lid and push a long piece of twine through only one end of the hole. How To Make a 1/2 Gallon Plastic Milk Carton Homemade Birdhouse Step 1: Lid. This reader submission shows you how one is being made. This will make the bird house water resistant. Your kids would love to turn their favorite drink carton into a bird feeder.