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.
Ravelry: Project Gallery for End of May Mittens pattern by Mandy Powers
NOT FREE - Easy beautiful color work using slipped stitches. Relaxing, enjoyable to knit. Soft and squishy to wear. Designer gives option to make smaller if desired. Extremely well written and charted if you .