I had a trip on the Yak last year almost ruined by an equipment failure. I was coming up on a big rapid, in my pontoon boat, when I grabbed my oars and leaned into them and the plastic sleeve that holds the brass oarlock failed allowing the cotter pin to pull through and my whole oar to come free sending me spinning out of control feet before large, fast bolder rapids. Fortunately the river gods smiled upon me and I was spared. Later, however, that same day my buddy had the same thing happen when his cotter pin fell out and he completely lost his oarlock in the river--forcing me to dust off my mcguiver skills with paracord and ducktape! Thinking about these two things in retrospect. I solved for them with a bombproof solution. I have a stainless steel sleeve now (with a teflon lining to reduce friction and a ring instead of pin to hold the oarlock. The ring is also outfitted with a fish-shaped anodized aluminum bottle opener to solve another problem when floating. I later found that most pontoon boats use the same cheap plastic sleeve/cotter pin setup. So my question is how many folks would be interested in a set of these sleves and rings (with fish bottle opener on one ring) if I produced a short run of these for other fisherman?