Thank you all so much for your many wonderful ideas! The decorative stitch I've picked is more open than many of them but obviously denser than a 2mm straight line stitch. I don't have an embroidery machine. I have a Bernina 350. It doesn't have many decorative stitches because I typically have no interest in them but I know my niece would love it if I can pull this off (I haven't told her just in case).
I'm going to do a couple practices & then see if I can't finish this thing up today. The quilt label is going to be hand written in Sharpie. I wasn't even going to do one, but this is the 2nd dolly quilt she's got because she took the first one to school & lost it.
I'm already putting a ton of work into my niece's 65x65" quilt with FMQ feathers, circles, orange peels, cross hatch & hearts. Everything is 1/2-1" apart quilting and I did lots of hand appliqued Sunbonnet Sues/Sams so I'm not about to pour tons of work into this doll quilt that was a distraction & that she'll most likely lose somewhere. It was wonderful to spend time with her & I'm thrilled we'll get another quilt artist in the family but mostly I just want this silly thing done.
I'll post pics when it's finished. Thanks again for all the lovely tips!!!