We used a free pattern from habitual, which worked well...and despite my not-so-great sewing skills, I was able to make two kimonos that I am totally in love with. I made the 6-12 month size, so I should be able to use them for a while.
I got both of these fabrics from Superbuzzy. The gold fabric is 100% cotton, and is called Proud Lion.
And the farm scene fabric is a Japanese linen-cotton waffle weave fabric (which has a wonderful drape by the way) called Free Range. I'm really happy with how both kimonos turned out, and can't wait to see them on baby!