But don't throw away all your non-mermaid brushes just yet: these aquatic beauties are just prototypes for now.
Though they're still in the design phase, brand founder Mel Blue said that she's considering doing a limited edition collection for TRUE undersea queens. They may even come in a shell case, though "Aesthetics will definitely be more important than function," she added.
If these brushes are any indication, 2017 is going to be the most magical year ever.
I'll keep you updated if there's any news on prices or availability; in the meantime, you can check out the Unicorn Lashes website to sign up for new product alerts!
Would you buy fishtail makeup brushes? I'm into them, but I'm not sure how I'd store them — those tails mean they wouldn't fit in ANY of my cups. Let me know in the comments, or on Facebook.