Different gathering stitches
Add sleeves and this would make a fabulous sweater coat!
* For children sviterochke.
If you& curious how to crochet on flip flops, this post will answer all your questions including if they fall apart over time.
Free Crochet Pattern: Adult-Sized Mermaid Lapghan to Keep You Warm on those Chilly Nights
Mermaid Tail Lap Blanket Crocodile Stitch by OnTheWayCrochet
would be interesting rework the coat into coat for adult - nice transition from cable to plain stitches