Halloween makeup might seem daunting to do yourself, but in reality, it presents the perfect opportunity for a beauty hoarder. Finally, an excuse to use all that yellow eyeshadow, purple lipstick and snow white foundation you bought on an ill-advised beauty binge. (Starting to get a few Halloween makeup ideas already, aren't you?)

Okay, Halloween makeup isn't quite that simple. Because, even after digging through Google images for trendy Halloween makeup ideas and rooting through our makeup collections for costumey colors, we're pretty confident that without a detailed how-to, it'd all end in a textbook Pinterest fail.

So to find our last-minute DIY Halloween costume, we hunkered down with a bowl of candy corn to uncover the best Halloween makeup tutorials on YouTube. And there are so many good ones this year — especially Halloween makeup inspired by popular upcoming movies, like "Jem and the Holograms" and "Suicide Squad." Thanks to the world of DIY beauty gurus and costume geniuses, mastering the coolest Halloween makeup looks of the year is actually possible.

After all, a pricey costume from a picked-over Halloween store won't earn you half as many compliments as turning yourself into Margot Robbie's Harley Quinn with nothing but a little face paint. Convinced? Here, our favorite Halloween makeup ideas for 2015.

Image via Imaxtree

Learn how to recreate this year's hottest costume with a bit of a twist. Our friends at PRIV, the glam-on-the-go app, show us how to create Pennywise the Dancing Clown using makeup and colorful hairspray. Expression lines and the horn-tipped smile keep this look true-to-form and creepy. For those of us who just can't do straight-up scary, ultralong lashes and contouring make it feminine and pretty.

Want to amaze your fellow Halloween party guests and give them a headache all at once? Makeup artist Tamang Phan says if you stare at this trippy look for too long, your brain literally starts to hurt. But hey, it's awesome. And you can execute the whole thing with everyday makeup from home.

The children of the '80s among us are waiting with baited breath for the release of the new "Jem and the Holograms" movie. Celebrate the resurrection of our favorite pink-haired rock goddess with this DIY Halloween makeup tutorial. Go all out and trade the pink wig for a bottle of Manic Panic's special edition semi-permanent Jem Amplified Hair Color, $19.99.

Halloween makeup doesn't get easier -- or hipper -- than this clever look that's based on Snapchat's new puking rainbow lens. Your Snap-addicted friends will be so impressed with this story-worthy look. The best part? You don't even need a costume to go with it