These were made following the pattern in the previous post with the following changes:
Instead of a chunky weight yarn, an aran weight (somewhere between a 4 and 5) was used,
Instead of increasing to 8, increase to 12 and work 12 rounds of ribbing and 18 rows of ribbing,
The strap was made a stitch or two wider.
Bow was made using U.S. size 3 needles and sock weight yarn by casting on 10 sts, work garter st (knit every row) for 6 inches, bind off, fold in half, stitch to gather and attach to slipper.