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.
Costume shop
if you want a REALISTIC one, look at mermagica or the mertailor there really great if you wanna buy an actual tail.
No. Mermaids are only make believe and do not exist in real life. You can go to a store and buy a mermaid costume to pretend you are mermaid. That is the only way to be one.
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There is no way to turn into a mermaid. They are not real and people can not change or morph into other creatures. If you want to be a mermaid, go get a costume from a store, or make one.
One of your parents would have to be a mermaid for you to have the blood of one and no one is a mermaid. They are not real and do not exist in the real world. A half fish and half human would die the moment it was created. If you want to pretend to be a mermaid go buy a costume.
You are NOT a mermaid, so you don't have to worry about it staying a mermaid. People can not change into half fish and half human. It is not possible. To nature it is a mutation and it dies. Get a costume if you want to pretend you are a mermaid.
A: You can't.
No. The girls on the show are actors and in costume with special effects people doing what they need to make them seem real. You can not become a mermaid. Why are you so desperate to be a mermaid? Mermaids are not real so you can never become one. If you want to pretend you can buy a costume to be one.
There is no such spell to turn you into a mermaid.
The only way you can become a mermaid princess is to get a costume at a store and make believe you are one. Mermaids do not exist in real life and people can't turn into one.
You can watch how to get a Halloween mermaid look by typing in "Mermaid Halloween Tutorial - Makeup, Hair, and Costume!" on YouTube.