The nervous postman
The dog barks loudly but has never bitten anyone. A sign with his goofy face and a friendly line tells the postman and delivery drivers who's behind the gate before they open it.
Make a custom beware of the dog sign with AI
Your dog's photo on a yellow enamel warning plate and on a wooden sign with its name, shown on the gate, with the text spelled right. Workflow visible here, no account needed.
Real workflow: a photo of a red and white corgi on a grey background, then a yellow enamel plate screwed to a wooden gate and a light wooden sign hanging from a picket fence, both with the corgi's portrait and French text.
At a glance
- You provide
- 1 photo · a text or a brief
- What the workflow produces
- 2 images in 4:3
- Canvas structure
- 6 nodes wired by 4 connections
- Models wired in
- Nano Banana 2.1
- Cost of one full run
- about 14 credits, roughly $0.17
- Account
- The demo is visible without an account; generating requires a free account, trial credits included
Shop-bought dog warning signs all show the same snarling German shepherd, when the dog behind your gate is a corgi who mostly barks to say hello. This workflow starts from a photo of YOUR dog and puts it on two gate signs: a classic yellow enamel plate and a softer wooden sign with its name, both pictured where they would hang.
The hard part is keeping the real dog and getting the words right. A model left alone draws a generic dog or makes up a slogan. The prompt asks for the original photo printed on the sign and gives every line in quotes. Nano Banana 2.1 keeps the corgi as it is and copies both lines letter for letter.
For something fun to post, a character portrait of your pet starts from the same photo; for a mailbox or a house sign, see laser engraving. Both signs cost fourteen credits.
Actual renders from the demo
These are the files of the workflow above, exactly as the models produced them, unretouched. The starting point is shown when there is one.
Starting point
Render
Who it is for
Dog owners, holiday lets and B&Bs, breeders, and anyone looking for a present for a dog lover.
Which files to provide
A sharp photo of the dog facing the camera, its description (breed, colours, markings) and the two lines to write, in quotes.
How it works
- 1
Pick the photo
Your dog facing the camera, sharp, head and markings clearly visible, on a plain background. That portrait is what ends up on the sign.
- 2
Write your two lines
A short heading on top, one line below, each in quotes in the prompt. The shorter it is, the better it reads from the street.
- 3
Proofread on the image
Letter by letter, the dog's name above all. The model gets it right almost every time, but it's your gate.
- 4
Have the sign made
Show the render to an engraver or sign printer: they rebuild the layout, the portrait and the text on the material you pick.
Variations and use cases
The same canvas, tuned for different needs: each variation is two or three lines of prompt away.
The real guard dog
A Belgian Malinois watches over an isolated plot. The yellow plate with HIS photo and a firm line works better than a pictogram: you see the actual dog behind the fence, and you stay out.
The birthday present
A friend orders a wooden sign with her sister's dog's name for her fortieth. The render is the mock-up she takes to the engraver, who copies the photo and the burnt lettering.
The dog-friendly holiday let
The owner of a holiday cottage hangs a sign with her dog's portrait at the entrance. Guests know there's a dog on site, and the welcome photos on the listing feel warmer.
The breeder
A corgi breeder puts his breeding bitch's portrait on the gate sign and on his website. Families coming to see a litter recognise the mother before they even meet her.
The dog who's gone
The old dog died in the spring. The family keeps a wooden sign with his name and photo by the door, more a keepsake than a warning, and the kids still say hello to it.
Common mistakes
A photo taken from afar
On a sign, the portrait is the size of a hand. A dog shot from a distance or from behind turns into a ginger blob. Shoot it head-on, filling the frame.
Too much text
Three sentences on a gate sign and nobody reads them from the street. A heading and one line are enough, in bold letters.
Not naming the markings
Without a description, the model may smooth the coat or move a patch. Name the breed, the colours and what sets the dog apart, as the prompt does for the corgi.
Printing the render as is
It's a photo of the sign on a gate, with the garden around it. For production, the engraver redraws a flat file from this mock-up.
Recommended models
Nano Banana 2.1
Flux Kontext
GPT Image 2.5 SunburstFrequently asked questions
Is my dog redrawn?
No: the prompt asks for its real photo, markings included. In the demo the corgi keeps its big ears, white blaze and red coat.
Can I write a proper warning?
Yes: replace the lines with "BEWARE OF THE DOG" and "GUARD DOG ON DUTY", or whatever you want on the gate. The joke in the demo is just an example.
Does it work with two dogs?
Yes, with a photo of both together and a prompt that describes each in turn: breed, colour, markings.
How much do the two signs cost?
Fourteen credits, seven per render on Nano Banana 2.1. A third style on the same photo, engraved slate or acrylic for instance, costs seven more.
Why Nano Banana 2.1?
Because it brings your dog's photo into a scene it builds, without redrawing it, and it spells the text right, accents included. That's why the sign shows your dog and not another one.
Is the text spelled correctly?
In the demo, yes: all four French lines are exact on both signs. Always proofread before ordering.
Can I change the material?
Yes: replace "enamelled metal sign" with engraved slate, acrylic, ceramic or stone, and say where it's fixed: gate post, mailbox, wire fence.
What output format?
4:3 landscape, the sign seen head-on with some of the gate around it. The framing of a photo taken from the pavement.
Make a custom beware of the dog sign with AI
Use this workflowFree account, no card required. The workflow opens pre-filled in your canvas.