Genius slipper design where you knit a short "scarf", fold and sew onto your bottom. Garter stitch extra chunky yarn about wide, and however many rows you need, then sew into the 2 layers of the felt bottom.
This is an adorable picture!--Psalm I will praise you, Lord, with all my heart; I will tell of all the marvelous things you have done. 2 I will be filled with joy because of you. I will sing praises to your name, O Most High.