I bought a ton of this fabric for a song off Fabric.com last year. It’s a thin cotton jersey knit with super fun graduating stripes. Love. One day soon I hope to have a maxi dress out of it. But for now, I took two squares of it, serged the sides partway, serged the top with a hole for my big ol’ head, used a French curve ruler to give it some shape before serging the sides again, then just serged the hemline and finished the arm and head holes with a stretch stitch.
It took all of 30 minutes, and these days, that’s about all the time I have for sewing projects.
Christie at A Lemon Squeezy Home has an awesome tutorial for a bit more finished top with more fun details.