When I first saw the puking-rainbow filter on Snapchat, my reaction was probably similar to everyone else's: Wait, what? How? This is dumb, but I want in. The Lens, which was part of the app's recent update, provides users with a plethora of options to transform their selfies — and, over time, annoy the heck out of their friends. The Lenses have included heart eyes, jumbo crying eyes, and everyone's favorite — the sick rainbow. While these, to our disappointment, have since been replaced (RIP), YouTube blogger GettingPretty has found a way to immortalize the lovely rainbow-puke just in time for Halloween. Using a combination of makeup and face paint (she lists the products under her video), she — in a quite genius way — recreates the bugged-out eyes, rosy cheeks, and band of colors flowing out of the mouth and down onto the neck. The key to getting those oversized eyes? Swipe on a couple coats of mascara and line your waterline with white eye pencil. The best part about this costume is that it's pretty easy to do yourself — all it takes are a few products and a steady hand — and you can wear it with your everyday clothes. We're calling it now: This is going to be the best costume this Halloween. Sure, you could go as the "Is it blue and black or white and gold?" dress, but everybody and their mom has already thought of that (sorry). Or you could slap on a toupée, suit, and orange bronzer to be Donald Trump. But where's the originality, people? Check out the video above to learn how to bring the puking rainbow to life. And let us know in the comments if you plan on trying this out, so we know how many other Snapchat-Lens costumes we're going to have to compete with come the 31st.