I thought it would be a nice idea to provide the pattern for my cherryberry's cozy/case.
Lion Brand's Chunky
Size 12 U.S. straight needles
4 1/2 inches wide and 3 1/2 long (with the flap closed); 5 1/2 long (with the flap opened)
The pattern is as follows:
Rows 1-3: Knit
Row 4: K6, yo, k6 (13) (YO creates button hole)
Rows 5-7: knit
Row 8: K1, KFB, K until 1 st remains, KFB last st (15)
Rows 9-50: knit
Fold over to desire length and sew the sides with remaining yarn. Then turn case inside out so that the sewed sides are now on the inside. Sew on a button.