I e-mailed the knitter with my question, but I’m impatient, so I thought I’d post here, too.
I just finished blocking my Pi shawl. In the process of looking around for help on the technique of putting the edging on, I visited many web sites for pictures and information about the Pi shawl, and came across this site. I really like the closure–practical and pretty–but am wondering where you might get something like this. Am I crazy, or does this almost look like a hair ornament that is doing double-duty as a shawl closure? If so, how clever! If it’s not, where might you get something like this?