More trim
Textured trim.
The only yellowish fabric I have is a cheery 2" lemon bias tape. So, I'm experimenting with covering it in a criss-cross of golden brown embroidery floss. The strands are spaced about a 1/4" apart. If I do decide to do the peplum this way, I'm going to go back and tack the thread in some places so it doesn't get caught on anything and stays in a nice diamond pattern.