This hat is made in Tunisian crochet in the round. Nine tentacles (or tubes) are protruding from the middle of the hat.
Note: I cannot recommend using the hat as trousers for any type of octopus or cephalopod! ;-)
Size: S (M) L or any size you find suitable.
Hat size: 53-56 (57-60) 61-64 cm = 21-22 (22½-23½) 24-25 inches.
Yarn: Fingering weight / 4 ply, 5 gram = 20 meters for each tentacle (40 grams = 180 meters for all tentacles), plus up to 40 grams of the main colour.
Hook: 5 mm (H) with a 60 cm = 24 inches long cord.