My first Baby Bib (with ribbons) can be found here...
This time, I printed off a baby bib pattern from here, and then continued on my own way without following that tutorial (although the process is similar, if you like more pictures to follow!).
After appliqueing, I just sewed the denim to the flannel with right sides together, leaving a few inches open at the bottom of the bib. Flip it right side out, press and top-stitch. Easy-peasy!
I used snaps instead of velcro this time. I don't know what Sister-In-Law prefers to use; at least she'll get one of each when I mail the box (one more week to due date!)