26-514-ami Bottle Cover
Direct link to pattern PDF. Pattern is entirely in Japanese but charted. This pattern has instructions for two different covers, A and B.
No gauge is listed in the pattern. Gauge and actual number of stitches cast on (as well as rows crocheted) will depend on the size of the bottle you use.
Japanese size 5/0 and 6/0 (3.0 and 3.5 mm) crochet hooks
for bottle cover A, approx. 10g (42 meters) yarn
for bottle cover A, approx. 15g (63 meters) yarn
bottle or vase