These sweet little cardigans were made with a Shara Lambeth Designs pattern I picked up on Etsy. I made the yellow one for a newborn little friend, and the pink one as a Christmas present for an almost-three-year-old.
I loved making this pattern, as it is all made in one piece, so it does not require any sewing together at the end. It also comes in a range of sizes from newborn to kids. You can grab a copy of the pattern here.