AI Halloween Costume Prompts with Nano Banana | Cosplay Ideas & Inspiration

You know how it starts. Someone in the group chat drops the dreaded question: "So... what are we doing for Halloween?"

And the momentum stalls. Every time.

Before you spend days arguing (and a bunch of money on costumes that don't work together), there's a better way.

Welcome to the digital dress rehearsal...

Use a group photo, a bit of imagination, and a single prompt to see what actually works. Settle the debate before it even begins.

The Prompt That Will Save Your Friend Group

The magic is in the details. You're not just creating costumes; you're creating the entire scene. Here’s the blueprint:

The Prompt: A candid selfie of our friend group testing Halloween costumes in the living room — mismatched characters (princess, ghost, alien, pirate), realistic lighting, snacks on the table.

Why It Works:

• Candid selfie: Keeps it from looking like a stiff, posed stock photo.
• Mismatched characters: This is the key. You're embracing the chaos to find the harmony.
• Realistic lighting, snacks on the table: These details ground the image in reality, making it feel like a real memory, not just a render.

You can try any combination. See what your friends would look like as the cast of Scooby Doo, the Avengers, or just a random assortment of whatever's in the costume shop.

It's the ultimate "try before you buy."

This Halloween, the best photos aren't just about the costume – they're about the character.

We're seeing a trend where the most compelling images are the ones that blend candid moments with a little imagination.

Examples:

• Put me in a scene from a '90s horror movie
• A selfie of me with Dracula at a blood donation drive
• Turn me into a Ghostbuster
• A realistic photo styled like an old horror VHS cover
• Put me in a werewolf costume

Take this shot, for example... It's not just a person in a stormtrooper outfit; it's the moment after the party, the commute home from the Death Star.

Creating an image with a story comes down to the details you feed the AI. The "tired stormtrooper" wasn't a lucky guess; it was directed. Here’s the prompt that created it, and why it works so well:

The Prompt: A casual phone photo of me in a stormtrooper costume with the helmet off, standing outside a party holding a drink under neon light. The expression is tired but amused — the realism comes from the imperfect lighting and unposed look.

Ready to direct your own scene?

See Yourself as a Stormtrooper – Just tap 'Edit Now' in the app + add your photo