Adding the personal touch

One of my friends just finished the danica scarf (knitted in entrelac), and asked me if there was a way to sign it, or somehow incorporate “To ____” and “From ____” in the scarf.
Is there a technique to do this, embroidery perhaps? We don’t know much about embroidery, but surely there is a way that we are not considering!

There are places that make custom labels for knitted goods.

Just Google ‘custom labels knitting’ and several come up.