Note for Unfinished Baby Blanket

I am working on a baby blanket for a friend that lives out of state but have not finished it. She is in town this weekend for a baby shower. I have gotten a small gift from her registry for her baby shower and was planning on putting the gauge swatch in the gift bag along with a cute note of some kind indicating that I will be sending her the blanket once it is done. I have not told her I am knitting her a baby blanket so I’d like it to be a surprise for the shower, but not a surprise later so that she knows to look for it in the mail. Does anyone have any recommendations/ideas for a what the cute note could say?