Just one photo today: my patchwork fish, made with random scraps, in a color combination probably not found in nature. Never mind. I wanted to show you his lips.
It's called double piping. Or, more accurately, regular single piping stacked twice. No need for a special double-piping foot - just a zipper foot will work just fine. I'll show you how to make that in the pattern, too. And then you can add kissy lips to all your stuffed animals.