Is there anything more magical than a unicorn? The answer, to me, is no. Unicorns are pure and beautiful, too pure for this world, really (literally), and they deserve all of the love. Unicorns represent color and magic and aesthetically pleasing vibes, which makes them perfect for a DIY Halloween costume. What makes them even more perfect for a costume is that they literally are not real, meaning you can define them however you want. Want to be a gothic unicorn who shuns color?