Granny hexagon

I wanted to make a different-shaped cushion, and I discovered/worked out that you can make hexagons in the same way you make squares. I found this pattern, but I didn't use it in the end as I wanted to see if you can do it in literally the same way as the squares, just changing the number of corners rather than doing different stitches. And it turns out you can, though it doesn't look quite as nice as the fiddlier ones at that link:

I had to unpick and redo a couple of rounds because it wasn't lying flat, but by experimenting I eventually got it.