"For exterior use, where weather and waterproofing is a factor, silicone or Butyl rubber sealant is the best choice. Acrylic ...
Everything is sealed up with Sugru, though you could probably use caulk or even hot glue (if you wanted something more temporary and less expensive). The smartest bit has to be the loop on Dave ...
Most of us have a junk drawer, full of spare parts yanked from various places, but also likely stocked with materials we bought for a project but didn’t use completely. Half a gallon of wood ...