If you can not drill directly into your wall, you can also use a 1 X 4" or 2 X 4" board and drill into them. Hammer your dowels into the board and then mount the board on the wall. I have things hanging on these dowel from extension cords, to welding helmets, to tape and even my workmate.
I think this is a great re-use of an item and is also sturdy and versatile. Save those brush dowels and let your imagination run wild. I have attached some pictures to give you an idea of their uses.