I made a mermaid tail for my niece for her birthday. She is 5 and LOVES to play dress up. I used LiEr's Tutorial. I used different material but basically followed it otherwise. It is super easy to make it your own! I love the design since it can either be a mermaid tail when you need a tail or a skirt when you need your legs back!
I was shopping for t-shirt knit fabric at the outlet fabric store when I came across a bin of swimsuit fabric remnants. I thought that swimsuit material would be the perfect material for a mermaid tail! That way if my niece wanted to wear it swimming she could!
I brought it up to get it priced and asked how much. The lady said it was $8 a yard, and there was a yard of fabric. I was fine with this price since I could probably get at least 2 tails out it ($4 a tail is not so bad)... but then she looked in her book and said "oh- swimsuit material is on sale.... it is only $2.99" SCORE!!!cute tutorial for Sea Shell tops too!
I got one of my favorite 5 year old friends to model it for you!
Pulled down to make the tail:
Pulled up to be a skirt when the mermaid is ready to come back to land: