Crochet Mini Rainbow

Crochet Mini Rainbows are a delightful and colorful addition to any craft project! These charming creations add a touch of whimsy and cheer to your surroundings, making them perfect for decorating children's rooms, parties, or even jazzing up your workspace. The vibrant hues of a mini rainbow bring a smile to your face and brighten up any day.
Materials:
Yarn: Scrap yarn from your stash in 5 different colours or hues. Thicker yarn = Bigger rainbow
Crochet hook: a size that works with the yarn
Abbreviations: r = row, st = stitch, sl st = slip stitch, ch = chain stitch, sc = single crochet, inc = increase, cc = change colour
Note:
The rainbow is not crocheted in spiral but with a seam. Which means:
- End each row with a sl st in the first stitch of the row and a ch. These stitches are not counted for at the end of the row.
- The new row always starts in the same stitch as the sl st.
r 1: 9 ch, ch turn. (10)
r 2: [2 sc, inc]x6, cc, sl st, ch. (24)
r 3: [3 sc, inc]x6, cc, sl st, ch. (30)
r 4: [4 sc, inc]x6, cc, sl st, ch. (36)
r 5: [5 sc, inc]x6, cc, sl st, ch. (42)
- Fold the rainbow and crochet together the two edges with sc.
r 6: [6 sc, inc]x3. (24)
- Fasten off the yarn ends.
Can any one tell me how to crochet a sling to carry a puppy in?