Lion Brand Pattern #: L32362
https://www.lionbrand.com/products/crochet-pattern-one-st...

SKILL LEVEL: Beginner (Level 1)

Heartland (Article #136) 1 ball
Yarn amount is sufficient to make 4-5 Cozies.
Shown in Glacier Bay

Crochet Hook - Size J-10 (6 mm)
One small button
Sewing needle and thread

Pattern: Half Double Crochet (U.S.)

Use spaces between stitches as buttonhole.

See also L32361 Beaded Rib Mug Cozy (knit)