I was the one who started the previous thread on how to make a crescent shape. What I ended up doing was to use a combination of short rows and decreasing. When doing the short rows, instead of wrapping and turning, I just turned without wrapping, and then when long rowing back, I knit* the stitch that would’ve been wrapped together with the next stitch – by doing this, you get a decrease and get rid of the short row gap at the same time. Between the decreases and short rows, you should get something that comes out like a crescent. You’ll have to play around with the number of stitches to cast on and the frequency of your short rows/decreases to get the shape you want. HTH
I did k2tog on one side and (I think) SSK on the other side to get symmetrical decreases.