Halloween window projection

The Witch's Lair

Bubbling cauldron, candlelight and a figure stirring something that should not be stirred.

Whatever is in the cauldron is still moving.

What this uses All builds

Loop in production

This build's video is on the way. The prompt and the full shopping list are below, so you can generate the loop yourself tonight and be ready when the clip lands.

Four steps. One evening.

Works in a rental, works on any size window, comes down in five minutes.

01

Hang the fabric

Pin a white sheer curtain or thin sheet across the window, on the inside. Keep it loose — wrinkles break the image.

02

Put the projector behind it

Aim the projector at the back of the fabric from inside the room. Nothing sits between the projector and the window.

03

Kill every other light

The projection competes with every lamp in the room. This step matters more than any projector spec.

04

Play it and go outside

Loop the file fullscreen, then walk to the kerb. If you can read it from there, it works.

The prompt that generated it

Paste this into a text-to-video tool to recreate or remix it at a different scale, speed or colour. 

Decorative Halloween projection animation on a black background: a witch in a wide-brimmed hat stirring a huge bubbling cauldron, green vapour rising, flickering candle flames and hanging dried herbs, all in black silhouette. High-contrast luminous tones, bold silhouette shapes, clean composition centred in frame, no text, no borders, seamless looping motion.
Write your own instead of buying a loop. No subscription or stock licence needed. Hand this to Claude or ChatGPT, fill the brackets, and paste the result into a video tool: 
Write a text-to-video prompt for a Halloween window projection.
Subject: [WHAT IT IS, e.g. a skeletal pirate crew on a galleon]
Style: pure black background, high-contrast luminous silhouette, bold shapes
Motion: [SIMPLE MOTION, e.g. drifting slowly sideways through low fog]
Framing: centred, wide 16:9, nothing near the edges
Exclude: no text, no watermarks, no borders, no camera shake
Loop: the first and last frames must match so it repeats seamlessly
Give me the finished prompt only, ready to paste into a video tool.

One subject per clip — crowded scenes turn to mush through a curtain.

What this build uses

Projector, screen surface, and the atmosphere items that make the street stop walking. Brightness matters more than resolution once a porch light is on.

Hocus Pocus XL Large Witches Cauldron with Timer Lights on Tripod
14.5x9.5in black plastic cauldron, 5ft metal tripod, 30 waterproof timer LEDs
Check price
DR.DUDU 4.6FT Large Witches Cauldron with Tripod & Green LED Lights
4.6ft tall outdoor cauldron on tripod with green LED glow
Check price
91 Pcs Halloween Potion Bottle Set
30 potion bottles with cork stoppers + 30 labels/stickers + accessories
Check price
HOHUCRAB Potion Bottles Halloween Decoration, Set of 4 Glass with Corks
4 glass potion bottles with corks + 10 Halloween labels
Check price
DR.DUDU 35in Animated Witches Broom Halloween Decor
35in animated/lighted magic broom prop
Check price
JOYIN 55'' Halloween Witch Broom Cane with Ribbons
55in witch broom with ribbons, prop/costume accessory
Check price
Hocus Pocus Book of Spells Prop / Spellbook, Leather-look
leather-look book of spells prop for spellbook/coven scene
Check price
CANDLE CHOICE Halloween Flameless Candles with Remote & Timer (real wax)
realistic flickering battery candles w/ remote for altar/coven ring
Check price
Disclosure: the product links on this page are affiliate links. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Prices change on Amazon at any time.

Questions about this build

Short answers on the projection, the loop, and doing it yourself.

What is the The Witch's Lair window projection?

Bubbling cauldron, candlelight and a figure stirring something that should not be stirred. It is a looping video you play through a projector aimed at a sheer curtain from inside the house, so the image shows through to the street.

Is the The Witch's Lair loop free to download?

Yes. The loop is published free once the nightly build finishes; the prompt below lets you generate your own version tonight.

What projector do I need for this?

Brightness matters more than resolution here, because the projection competes with porch lights. The list below covers a budget tier and a higher-brightness tier — either works for a window.

Can I make this myself with AI instead of downloading it?

Yes. The prompt used to generate this loop is printed on this page, along with a reusable template you can hand to Claude or ChatGPT and then paste into a text-to-video tool.

How long does the setup take?

About an evening. Hang the fabric, aim the projector from inside, kill the room lights, then check it from the street. Four steps, no tools, nothing mounted outdoors.