For towel bars, I use flat aluminum stock, 1 inch x 1/8 inch thick. The top edge is then covered with chrome plastic auto door edge trim. I make wooden supports and stain them to match the cabinets. With an angled wall in the bathroom, house type of towel bars would not work.
Texas Baptist Men-Retiree Builders member since '01
13 Silverado 3500HD D/A, 2wd CCSB srw, custom RKI bed
11 Cruiser CF32MK