Making a swale bucket for an excavator then digging some drainage trenches. 

 Nice design on the bucket. Worked better than I imagined. I agree that it would have been nice to make the sides a little wider so the edges of the swale are not as steep. but hey, it's also a great tool for trenching an line (plumbing, electrical, etc.). One thing I would add is a replaceable (bolt-on) leading edge. Let that be a wearing item. Again, nice job!  This bucket is the best tool you've made so far. I love how it is shaped so perfectly for the task you intended for it. I am so impressed!