Gauge isn’t terribly important. Just pick a worsted weight yarn you like and run with it. This is more a stitch pattern than anything and I’m not the first one to have come up with it.

~~~the fine print~~~
This pattern, the knitted design to which it refers, and all photographs and illustrations contained within are subject to copyright protections. This pattern may only be used for personal, non-commercial purposes, unless given specific written permission by the designer. You may not distribute or sell hard or electronic copies of this pattern, and this
pattern may not be used for commercial production without permission (don’t worry- craft fairs, charity benefits,
and commissions from friends are fine.) Your purchase or use of this pattern constitutes your agreement to abide
by these copyright and licensing guidelines.