I decided to make a "Lace-Edged Women's Hat". It's a free pattern that I found on Ravelry. I made one a few years ago for a friend when she was undergoing chemo. It's a great hat. The pattern is easy, fun, and I love the femine, lacy band around the bottom.
I used size 7, 16" circular needles and Bernat Satin yarn to make it. I made it in the largest size, casting on 96 stitches. I was a little worried that it might be too big but I think it turned out just right. The smaller sizes might actually be too small for an adult head. It's very soft and I think it's also very pretty.
I've seen a couple of other hats that have been made for her so far. I have a feeling she's going to have quite a few to choose from, in many colors and styles. I hope she'll be able to feel our love and support as she battles that awful "c" word.