I built this lightweight stitch-and-glue pram dinghy using 6mm plywood and one layer of epoxy and fiberglass. See
Kayaks and Dinghies for more details.
We sewed together this mast ladder from 2-inch nylon webbing. It
gets hoisted in the mainsail luff track.
Atom's yuloh, a 16-foot Chinese sampan sculling oar which pivots on a pin for less friction than the standard oar lock.