I'm so excited that I finished up this mod! I wanted to do it every since I saw it on thepopupprincess years ago, but our old PUP did not have enough room on the underside of the bunk. New PUP has plenty! I made two towel racks out of 1/2 inch PVC that hang under the rear bunkend. They stow up under the bunkend and stay there when we slide in the bunk. I'm excited to have these built in and not have to bring along a stand-along drying rack. Just one less thing to worry about packing! Here they are stowed. Notice I offset the clips that hold them up about 6 inches from the rings where the ropes are attached. You basically swing them up and back in to the clips. That way the ropes don't hang down and get tangled on anything. Hanging down: With grubby garage towels for illustrative purposes : ) Close up of them stowed: Why so many? We always have 5 bath towels, a hand towel for me, usually a kitchen towel or two, and extra space for when we have bathing suits and beach towels. Can't wait to try them out on our first trip of the year next weekend!