Just finished my towel rail for the bathroom. I used a piece of pine picket fence. The dowel is Tasmania oak. I have used two black brackets. I have used a fast grab good adhesive and attached the towel rail to the bathroom tiles - as I did not want to chance breaking tiles by drilling. At either end of the dowel are end caps of plumbing pipes made in bronze - just as a fancy finish! Everything purchased from Bunnings.
