Pattern credit: Mermaid Tail Afghan by Nadia Fuad (it actually has a pretty great youtube video of instructions as well), I didn't follow it exactly but used it as a guideline. If anyone is doing this pattern I recommend using 3 colours and carrying the yarn up the sides, it saves a LOT of sewing of loose ends after completing the body of the blanket!
The pictures aren't the greatest, my 'model' wasn't cooperative and the blankets are size M, made for ~10 year olds and she's only 3!
The Shark Blankets I improvised based on a picture sent to me from a friend. I actually used the same tail from the mermaid blanket pattern above and did the fins, eyes and teeth free form. I was happy to figure out how to make a string of triangles together and then sc'ed them into place with the red. The whole shark base is just loose dc stitches. These take me around 10 hours.