Taken from The Second Sublime Double Knitting Book: "Scour the vintage markets for delightfully quirky buttons to give this fabulous cardie a hint of gorgeous home made style."
This pattern is in The Second Sublime Double Knitting Book page 14.
Size US 6 straights (or sizes needed to obtain gauge), stitch holders, and 10 buttons (8 for the two smaller sizes) are required but not included.