You can find here the pattern for an crocodile. This can be crocheted with the mouth open or closed.

The pattern consists of 12 pages with explanations and pictures and can also be done by lefthanders and beginners.

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You need to know basic knowledge in crocheting:

magic ring
stitch
slip stitch
chain
single crochet
increase
decrease
back/front loop only
row
round

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With hook size 2.5 the crocodile will be around 20 cm lang, 4,5 cm wide and high.

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Materials:

Yarn: Use the colors and size you prefer and the matching crochet hook.
I’ve used crochet hook in 2.5 and the following Schachenmayr Catania yarn:

green
dark green
white
Soft stuffing
A pair of 6 mm safety eyes (if you choose another yarn, you will perhaps need different eyes)
A needle and some black and white yarn for embroidering, sewing pins, scissors, stitch marker
(optional)