This can easily be converted into a crochet pattern - lacy baktus - free pattern! Row Knit YO, across the row. Row Knit, make sure you knit the YO through the back loop. Rows 3 and Knit. Repeat rows 1 through 4
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.