Abbreviations:

Ch = Chain
DC = Double Crochet
Inc = Increase
St(s) = Stitch(es)
Supplies:
Worsted, Sport or Aran weight yarn.
Crochet hook (adjust according to the yarn you choose)
1 button for closure
Scissors
Yarn needle
Notes: 
Gauge is not crucial for this design.
Ch 3 does NOT count as a DC.
You will increase by adding one double crochet at the end of each row.

Row 1: Ch 4, dc 3 in first ch. (3 dc).
Row 2: Ch 3, turn. 1 dc in the next 2 sts, dc inc in the last. (4 dc)
Row 3: Ch 3, turn. 2 dc in the next 3 sts, dc in the last st. (5 dc)
Continue in the same fashion by doing a ch 3 at the beginning of each row and increasing with 2dc in the last stitch of each row. 
For my small dog I crocheted a scarf with 27 rows.
To finish, break your yarn and sew a button in the same corner the yarn was fastened. Use the yarn needle to weave in loose ends.
Happy Crocheting!

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