Worked in the round, top down using three strands (Navajo/chain plied as I knit) of sock yarn and have a gauge of ~4spi.
I use the knitted cast on and Icelandic bind off but anything stretchy should work.
Can be sized up in Round 5 by replacing the center double decreases with bunny ear decreases.
Shown with a cast-on count of 117 stitches.