The Little Snake is a 20 x 37 repeat.

I used the Little Snake pattern to create a pouch for my son’s calculator with a worsted weight yarn and a G (4 mm) hook, but it can be made with any yarn and corresponding hook size.

Pattern includes chart (DC’s marked with X) and written instructions. I’ve also included how I made the little pouch as shown in the picture. It is available in both English with US crochet terms and Dutch.