You can buy it from a user but if you have a promo code you could get it from that.
Costume shop
A: You can't.
There is no such spell to turn you into a mermaid.
Anywhere that has a costume
You can watch how to get a Halloween mermaid look by typing in "Mermaid Halloween Tutorial - Makeup, Hair, and Costume!" on YouTube.
Mermaids aren't real so if you want to be a mermaid you should dress up in a mermaid costume.
There are several websites which provide direction on making a mermaid costume. Coolest Handmade Costumes, Tootisie Grace and Light in the Box are all online websites provide information about sewing mermaid costumes.
if you want a REALISTIC one, look at mermagica or the mertailor there really great if you wanna buy an actual tail.
Not officially, but you can pretend to be, and wear the costume.
a costume shop that is in australia
To get a mermaid costume on club penguin you have to go to the clothes store and then click on a magazine on your left bottom. Then you can look at costumes and more by the way add me I'm poppy 