There's some fabulous crumb quilts around the internet, and I keep coming back to the concept and trying my hand at it, but I find them very hard to pull off. I seem to get wedged in a loop of premature optimization, as I try to figure out how to optimally use each tiny scrap.
Here's the whole of my accumulated supply:
Most recently, I tried paper-piecing the kite shaped random areas, and squaring them off with purple wings. I like the results of that a lot, and they seem like they might be easier to put together into something I like, but they're much slower than the other ones to make.