🕯️ From Sacred to Scary: How to Make a DIY Demon Nun Costume

DIY Demon Nun Costume with sunken eyes and tattered habit
When innocence turns sinister, the result is a vision straight from your worst nightmares—the DIY Demon Nun Costume. It's a chilling combination of religious imagery and horror that flips purity on its head, leaving nothing but dread in its place.
With her pale, cracked skin and sunken black eyes, the demon nun evokes unease without saying a word. A corrupted symbol of sanctity, this look draws from pop culture and religious horror alike, offering an unforgettable transformation perfect for Halloween or haunted attractions.
What makes this costume so disturbing is its familiarity twisted beyond recognition. The traditional habit remains, but every detail—from the torn veil to the blood-smeared rosary—tells the story of something once holy now possessed by darkness.
đź‘— Step 1: Assemble the Unholy Habit
To begin your DIY Demon Nun Costume, you’ll need the classic nun silhouette—but with a sinister twist. Start with a long black dress or nun's habit as your base. The more traditional it looks, the more disturbing the contrast once the horror elements are added. A used choir robe or Halloween costume base works perfectly and can be modified with ease.
Layer on a white coif and wimple, which frame the face in eerie contrast to the dark robes. Tear or stain them with brown smudges, red streaks, or burns to suggest decay and corruption. Adding a sheer or shredded veil can give the costume a ghostly, flowing effect—especially when it moves under dim light.
For footwear, opt for black boots, battered shoes, or even bare feet if you're going for a ghostly convent escapee vibe. Fingerless gloves or bony skeleton hand gloves add to the deathlike imagery. The goal of your DIY Demon Nun Costume is to preserve the familiar outline of a nun while making every detail feel wrong.
✂️ Step 2: Distress and Corrupt

DIY Demon Nun Costume with cracked white face and haunting black eyes
Now it’s time to drag that holy habit straight through hell for your DIY Demon Nun Costume. Start by distressing the fabric with tears, burns, and jagged cuts. Use scissors to fray the hem and sleeves, then carefully scorch the edges with a lighter or candle to give the appearance of age, fire damage, or a supernatural struggle. Safety comes first—burn fabric in a well-ventilated area and extinguish any smoldering edges immediately.
Next, smear on grime and blood. Use brown, black, and red fabric paints or makeup to dirty the costume—focus on the collar, sleeves, and skirt, where dirt would naturally collect. For maximum impact, splatter fake blood across the chest or down the front of the robe as if the nun has been through a violent ritual or unholy baptism.
Complete the corruption of your DIY Demon Nun Costume with symbols of dark power. Paint inverted crosses, runes, or Latin script onto the habit using a fine brush or stencil. You can also stitch or glue on thorny vines, bone fragments, or bits of black lace to suggest transformation into something no longer entirely human. These defilements turn an ordinary habit into a haunted nightmare.
Explore other Great Halloween Ideas Here
đź’„ Step 3: Face of the Damned
Demon Nun Halloween Makeup Tutorial
The face is the soul of your DIY Demon Nun Costume, and this one should look like it’s long since lost its salvation. Begin by applying a base of pale white foundation or greasepaint across the entire face, neck, and any visible skin. This ghostly complexion sets the stage for what’s to come.
Next, hollow out the eyes with heavy black makeup. Smudge it out into the sockets, blending toward the temples to create the illusion of sunken, lifeless eyes. Darken under the cheekbones with gray or brown contour to give your face a gaunt, corpse-like appearance. If you want to go even deeper into the horror, add cracked skin lines using a thin brush and black liner, or use scar wax for raised texture.
For the final touches, consider dripping fake blood from the eyes like demonic tears, blackening the lips, or adding white or red contact lenses for an inhuman stare. A faint blue vein painted across the forehead or jaw can add an extra layer of unease. This isn’t just a nun—it’s something that never should have been awakened.
🕯️ Step 4: Terrifying Touches
Accessories are what truly bring your DIY Demon Nun Costume to life—or rather, unlife. Start with a rosary, but make it unsettling. Replace the cross with an inverted version or swap the beads with bones, skull charms, or blackened stones. Drape it around your neck or wrap it around your wrist like a cursed relic.
Carry a blackened Bible with burned or tattered pages, or create a faux holy book wrapped in dark cloth and marked with unholy symbols. A rusty crucifix, dangling from a chain or belt, adds a sinister edge—especially when it clinks with each movement. You can also wear a cursed-looking locket, stained gloves, or blood-splattered fabric draped like a relic.
To complete the look, consider carrying a prop candle, flickering lantern, or demonic nun mask as a handheld horror piece. A cracked mirror, charred prayer book, or beads dripping with red paint can give subtle but disturbing depth to your costume. Each item should suggest a backstory of corruption, suffering, and blasphemy.
đź§ Step 5: Possessed Performance
The visual is terrifying, but your movements will seal the nightmare. A true DIY Demon Nun Costume comes alive—or rather, undead—through the way you carry yourself. Move slowly, almost gliding, with sharp, sudden jerks that suggest something unnatural. Tilt your head abruptly, stop mid-motion, or pause in eerie prayer poses to create unease.
Your voice, if used at all, should be chilling. Whisper in low, breathy tones or chant broken Latin phrases that sound like forbidden scripture. You can also emit guttural growls, subtle laughs, or a sharp screech for a shock moment. Silence, however, may be your most terrifying weapon—just standing still and staring can unnerve even the bravest crowd.
Gestures should be minimal but unsettling: clutching a crucifix to your chest, slowly raising a hand in mock blessing, or holding your prop candle aloft while whispering nonsense. Every action of your DIY Demon Nun Costume should make people feel like they’re witnessing something profane and unholy.
The idea of the demonic nun taps into deep-rooted fears of corrupted purity, popularized by films like The Nun, The Conjuring 2, and Stigmata.
📸 Step 6: Haunted Convent Photo Shoot
Your DIY Demon Nun Costume deserves to be captured in all its terrifying glory. Choose photo locations that evoke isolation, decay, or spiritual dread—think candlelit basements, crumbling churches, foggy graveyards, or stone corridors with heavy shadows. The more atmospheric the backdrop, the more haunting your images will be.
Lighting is crucial. Use dim, directional sources like flashlights, red bulbs, or flickering candles to cast deep shadows across your face and robe. Position yourself behind iron bars, in front of stained-glass windows, or crouched in corners to amplify a sense of entrapment or lurking evil. Incorporate natural fog, artificial smoke, or dusty overlays for texture.
In post-editing, apply grain, blur effects, or desaturation filters to age the images or give them a VHS-quality aesthetic. You can even layer faint demonic symbols or ghostly apparitions into the background. Whether you pose in silent prayer, mid-screech, or glaring through the veil, let every photo tell a story of your DIY Demon Nun Costume purity gone horribly wrong.
🏆 Why Go DIY?
Creating a DIY Demon Nun Costume isn’t just about saving money—it’s about crafting fear on your own terms. Store-bought costumes might offer a basic outline, but they lack the layered terror, personal flair, and backstory that a homemade version can deliver. With DIY, you control every detail, from the way the fabric tears to how the rosary drips with imagined blood.
This isn’t just a costume—it’s a transformation. When you distress the robes, paint your own demonic makeup, and build accessories from scratch, you’re creating a character that feels cursed, haunted, and real. Your version won’t look like anyone else’s, and that’s exactly the point.
Plus, DIY lets you lean into the horror. Add as much gore, symbolism, or subtle psychological terror as you want. Whether you want to channel a vengeful spirit or a fallen sister possessed by ancient evil, going DIY guarantees your DIY Demon Nun Costume will be far more unforgettable—and far more disturbing—than anything on a costume rack.
🕸️ Related Costumes to Try
DIY Stitched Mouth Schoolgirl Costume
DIY Corpse Bride Look
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DIY Demon Pope Costume
🩸 Black + White Face Paint Set

Includes: Large capacity (2.46 oz) black and white oil-based face paint set
Safe for Skin: Non-toxic and suitable for all skin types—always do a patch test
Rich Pigmentation: Strong cosmetic-grade pigments for full coverage without cracking
Easy Application: Goes on with sponge, brush, or fingers; wipes off with remover or wipes
Perfect For: DIY Demon Nun Costume, cosplay, Halloween, theatrical shows, and horror events
Further Reading & Resources
đź“– Read: How Nuns Became the Center of Horror's Hottest Subgenre
🔍 Explore: The Resurgence of Nuns in Horror: Exploring the Chilling Trend in Modern Cinema

ML Lamp is the owner of Kilroy Was Here. After his 20 years of working in Las Vegas in the entertainment promotions field, Mr. Lamp retired in 2002 from his job to pursue his passion for collectibles. Now as a guest speaker and author he’s living the dream, and sharing his warmth with You.