This adult sized mermaid tail blanket was really fun to make. I modified the pattern to allow for a split in the back making it easier to get in and out of. The tail is a cocoon only to about the knee area. I also got a little fancy with the top trim and made it look like a crown.
The last picture is my youngest son modeling it. (He want’s to make a shark version)
Pattern by Natalie Scott:
http://www.ravelry.com/patterns/library/little-mermaid-cocoon-tail
Alana