I already have a white silk scarf- I don't yet have a yellow one. I think twining together yellow and white ones, as CarolC said, would make a powerful statement. At the very least, it will serve as a conversation starter- and these days the more people we can get to talking, the better.

Or, if that ends up being too bulky around my neck, I think a white scarf entwined with a yellow ribbon will serve the same purpose.