This article has been contributed by Tiffany Threadgould, TerraCycle’s Chief Designer. TerraCycle makes affordable, eco-friendly products from a wide range of different non-recyclable waste materials. Looking for a refreshing alternative to throwing away your toothpaste tubes? This easy do-it-yourself project upcycles your empty tubes into a simple toothbrush holder.  Upcycling materials like these are a great way to reuse without costing a mint.