No "Amazing texture stitch! Text is in Russian, but there are many more clear pictures. The stitch looks beautiful on either the knit or the purl side. I'm looking forward to trying this great technique." comment via
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.