my russian friend just showed me these images of cosplay mermaid tails from this girl but i can't seem to find out more info. like what material she uses (looks like silicone though)... not sure if she's known either, but she's known as a cosplay master. has anyone heard of her?

https://pp.vk.me/c617425/v617425720/...owwSO4x90k.jpg

https://pp.vk.me/c617425/v617425720/...gFOBZyFa3E.jpg

https://pp.vk.me/c617716/v617716720/...m3QB0gP7KM.jpg

https://pp.vk.me/c617716/v617716720/...uShvZMEoL0.jpg