The Very Berry Cup Cozy is a great stash-buster and works with all types of mugs/cups. It uses the berry stitch and is worked flat.

Supplies:
Worsted weight yarn (recommended: Lily Sugar’n Cream, 25-28 grams)
4.5 mm crochet hook
Button
Scissors and tapestry needle

Gauge:
10 SC stitches and 10 rows = 3 in x 2.5 in (7 cm x 3 cm)

Finished measurements:
3.5 in x 10.5 in, not including button hole section (8 cm x 26 cm)