Guerrilla on a budget: five street ideas under €500

Guerrilla marketing on a budget is not a stunt with a film crew. It's one clear idea, placed where your customers already walk, made by two people over a weekend for less than €500. The five ideas below are built around one question: will someone walking past stop for two seconds? If they stop, and there's an easy way to act on it – a QR code, a code word, a door ten metres away – you have a campaign. For each idea you get why it works, an estimated budget and what to measure. Then the rules, which matter more than the idea.

What is guerrilla marketing?

Guerrilla marketing is advertising that turns up somewhere unexpected in the physical world – a pavement, a window, a door handle – and works through surprise rather than size.

It suits businesses with a physical place or a clear local area: a café, a barber, a bike repair shop, a window cleaner who covers three districts. If your customers are spread across the country and never walk past anything of yours, spend the money on ads instead.

Idea 1: a clean-stencil message on the pavement

The idea. Instead of painting, you clean. Lay a stencil on a grimy surface and wash through it with a pressure washer, so the message shows up clean against the dirt. This is often called reverse graffiti. One short line and your logo, a few steps from your door, pointing the way: "The best coffee on this street is 20 steps that way."

Why people stop. It looks like something that shouldn't be allowed, yet nothing was added to the street. The contrast catches the eye, people read it, and some take a photo.

Example budget (estimate):

What to measure. Put a code word in the message ("say STENCIL at the counter for a free pastry") and count how many people say it each week. If you add a QR code, put it on a small sign in your own window nearby, not on the pavement.

It fades as the surface gets dirty again – a limited run by design. It is still a message in public space, though, so read the rules section first.

Idea 2: door hangers with one sharp offer in one neighbourhood

The idea. Choose one neighbourhood – ideally the streets within a ten-minute walk of you – and hang a card on every door you're allowed to reach. One offer, one deadline, one way to respond. Not a menu, not your full list of services. If you struggle to fit the offer on a card, write it so it's understood in three seconds first.

Why people stop. You have to touch a card on your door handle to open the door. It is physically in the way, in a friendly sense. And it's obviously local: "for the homes on these four streets in Kalamaja" reads like a neighbour, not a corporation.

Example budget (estimate):

What to measure. Print a QR code that opens a unique tracked link – for example with utm_source=doorhanger and utm_campaign=kalamaja-october (Google explains the parameters in its guide to campaign URLs). Add a promo code that exists only on these cards. Then divide the total cost by the number of customers who used the code. That's your cost per customer from that neighbourhood, and you can compare it with anything else you do.

Idea 3: a window or storefront installation

The idea. Your own window is the one piece of street you fully control. Turn it into a scene rather than a display. A florist fills the window with 300 paper cranes for spring. A bike repair shop puts up a vinyl decal of a wheel "breaking through" the glass. A café covers its window in handwritten notes from regulars on its birthday. The test: does it make sense in one second from across the road?

Why people stop. People have learned to look straight through shop windows. A window that suddenly becomes something odd breaks the pattern, and it's easy to photograph from the pavement.

Example budget (estimate):

What to measure. Keep a simple tally of people who come in during the installation weeks and compare it with the two weeks before. Track scans of the window QR code. And ask at the till: "What made you come in today?" with three answers you tick on a sheet of paper.

A window sign that faces the street can count as outdoor advertising, so check the tax point in the rules section.

Idea 4: a trail that leads to your door

The idea. A series of small, curious markers that all point to one place. Ten numbered cards in the windows of friendly neighbouring shops, each saying "7 more to go", ending at your door with a small reward. Or "found objects": small sealed envelopes left – with permission – on the counters of partner businesses, a hairdresser, a co-working reception, a bookshop, each with a card inside saying "You found it. Bring this to us for a free coffee."

Why people stop. Curiosity hates an incomplete set. Someone who has seen two markers starts looking for the third.

Example budget (estimate):

What to measure. Give every marker or envelope its own number or code, so you know which spot sent people. Count redemptions per spot, and next time drop the spots that sent nobody.

Idea 5: a small street moment tied to a season or local event

The idea. Borrow attention that already exists. The first cold week of autumn, the first snow, the start of the school year, a local festival, a big match everyone is watching. Do something small and on topic: a warm-up table outside the shop with free tea in the first properly cold week; umbrellas to borrow (and return) on a rainy festival weekend. If it's tied to an organised event, talk to the organisers first – most have a process for partners and vendors.

Why people stop. It's relevant today. You join a conversation people are already having.

Example budget (estimate):

What to measure. The value of a moment like this comes after the day. Collect sign-ups (email or phone) for a follow-up offer, track QR scans, and count code redemptions over the next two weeks.

The five ideas side by side

What are the rules for guerrilla marketing in Tallinn?

Anything visible in public space is usually treated as advertising, and advertising in public space needs permission. In Tallinn, outdoor advertising has to be coordinated with the city, and advertising tax may apply. This is not legal advice and the rules change, so check before you print anything:

• Public space usually needs permission. Pavements, walls, lamp posts and parks belong to someone, usually the city. Ask before you put anything there, even for a day.
• In Tallinn, start with the city's outdoor advertising page. The city's outdoor advertising page (in Estonian) lists how to get outdoor advertising approved and who to contact. The Old Town is a heritage protection area and has its own permit.
• Advertising tax may apply. Tallinn has a local advertising tax on advertising displayed in the city, and the rules include exemptions. Check whether your idea is taxed on the city's advertising tax page before you commit. Outside Tallinn, check your own municipality's website.
• Don't damage property. No paint, no glue, no stickers that won't come off. Even chalk and cleaning-based stencils can fall under a city's public order and cleanliness rules, so "it washes off" is not a permission.
• Private property needs the owner's consent. A wall, a fence, someone else's window, the stairwell of an apartment building: get a written yes from the owner or the apartment association, and keep it on your phone.
• Respect "no advertising" signs on doors and mailboxes. Ignoring them turns a nice idea into a complaint.
• Clean up on time. Remove everything when you said you would and leave the spot better than you found it.

How do you photograph it so it lives on social media?

Plan the photos before the installation, not after. A street idea is seen by the people who walk past; a good photo of it keeps working online for weeks after it's gone.

1. Shoot in the first hour, while everything is clean and in place.
2. Take three kinds of shots: a wide one that shows the street and makes it obviously real, a close one where the message is readable, and one with a person reacting. Ask before you post a recognisable face.
3. Film vertical video (9:16, 10–20 seconds) for Reels and Stories, and take a few horizontal shots for your website and for local press.
4. Film the making of it. A timelapse of the install or a before-and-after of the stencil is often more watchable than the finished piece.
5. Post the same day with the location tagged, and ask people who find it to tag you.
6. Turn the best photo into an ad. A photo of a real thing in a real street makes honest ad creative for a small local Meta campaign. Pilgud Agent can build that campaign for you – paused, so nothing runs or spends money until you approve it.

How do you measure guerrilla marketing without guessing?

Give every idea one code, one link or one question, and count. It fits in a notebook:

• Total cost of the idea, including printing and rewards.
• Codes redeemed, QR scans and till answers per week, for the two weeks before, during, and the two weeks after.
• Cost per new customer = total cost ÷ customers who came because of it.

Codes undercount – plenty of people come in without scanning or saying anything, which is why the till question matters. If the cost per customer is below what a customer is worth to you, do it again somewhere else.

When you want something bigger than €500 – a bus shelter, a projection, a whole street – that's what our guerrilla team does.