A QR code turns a challenge coin into a doorway. Everything else on the coin says who you are; the code hands the person holding it somewhere to go — an entry form, a video, a unit portal, a page about the person the coin honors.
It is the one design element that keeps working after the coin leaves your hand, and the only one whose destination you can change after the coins are struck, as long as you point it at a link you control.
We’ve struck codes recessed into antique silver, filled flat black against enamel, and set inside cut-to-shape designs. Send us the link and our art team handles the rest.
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Designing a Coin the Metal Can Actually Read
A QR code is the one element on a challenge coin that has to survive being manufactured and still work. Everything else only has to look right. A code has to be legible to a camera after it has been reduced to the size of a thumbnail, struck into metal, and plated.
Three things decide whether it reads. The code needs a real share of the coin face rather than a corner. It needs contrast against whatever sits behind it. And it needs its quiet zone — the blank margin around the pattern — kept clear of lettering, rope borders, and rims.
The variable you control most easily is the link itself. A short URL encodes into fewer, larger squares; a long one packs the same area with detail finer than a die can hold. Shorten the link before you send it and the code gets easier to scan at every size we can strike.
Recessed Metal or Filled with Enamel
There are three ways to render a code on a coin, and they behave differently in the hand.
A recessed code is cut into the metal itself, so the pattern reads as shadow against the plating. It is the most understated of the three and suits antique finishes, where the darkened recesses give the code its own contrast. It also stays legible however the coin is handled, because there is no color to wear.
An enamel-filled code is flat black against a light enamel field. Contrast is higher, so a filled code tolerates a smaller footprint or a busier surround than a recessed one, which makes it the safer choice when the code has to compete with color elsewhere on the face.
A printed code puts the pattern on the coin the way it would appear on paper — the highest contrast available and the finest detail, at the cost of the tactile depth the other two have.
Either can sit inside a cut-to-shape coin or a standard round coin, and either can pair with the plating and finish options you’d choose for any other design.
Point the Code Somewhere You Can Change
Once the mold is cut, the pattern on the coin is permanent. The address it resolves to does not have to be.
Point the code at a short link or a redirect you own rather than at the destination page directly. The coins keep resolving the same address for as long as they exist, and you repoint that address whenever the campaign moves — an entry form this year, a results page next year, a new site after a rebrand. It costs nothing to set up before the coins are struck and it is the one decision here you cannot revisit afterward, which is why organizations running a coin program across several years almost always do it.
Codes That Track Individual Coins
A QR code identifies the batch. Pair it with sequential numbering and it identifies the coin.
Each coin gets its own engraved number beneath the code, which turns the pair into a credential: the code takes the holder to a form, and the number proves which coin they’re holding. Raffles and contests use it to cap entries at one per coin, membership programs use it to check a coin against a roster, and limited runs use it because a numbered coin is simply worth more to the person who has it. Our post on trackable challenge coins walks through how customers have run these programs.
What People Put Behind the Code
The coins we mint with codes fall into a few recognizable groups.
Coins that replace a business card. The code opens a contact page, a portfolio, or a booking form, and the coin stays on a desk long after a card would have been thrown away. It’s the pairing we’re asked for most — see coin business cards for how those designs are laid out.
Coins that run a campaign. Trade show giveaways, referral programs, and prize drawings all use the code as the entry mechanism, because scanning is a shorter path than typing a URL from a printed handout. Promotional coins covers the broader category.
Coins that open something private. Committees, alumni groups, and units use codes that land on a login screen rather than a public page, so the coin doubles as the reminder that the portal exists.
Coins that carry a story. Commemorative and memorial designs link to a page about the event or the person being honored — the coin holds the name and the dates, and the code holds everything that wouldn’t fit. Commemorative coins shows what those look like.
For a walk through real examples — a raffle coin, a commissioning committee’s portal, and a cryptocurrency project’s design — read our post on QR code coins.
Getting Started on a QR Code Coin
Send us the link and whatever design ideas you have — a rough sketch and a sentence are enough. Our art team builds the code into a full-color digital proof, and revisions are free and unlimited until the design is right.
Scan the code in your proof with your own phone before you approve it. If it reads on a screen it will read on the coin, and that check is the last thing standing between a good design and a coin nobody can use. For unit pricing across sizes and quantities, see our challenge coin pricing page, or fill out a free quote form and we’ll price your specific project.
From Your Vision to a Finished Masterpiece
Don't touch a pixel. Our award-winning design team handles everything, you just share your idea and approve the proof.
Explore Finishes & Upgrades
Challenge Coin Pricing
No Color (Metal Only)
| Size | 50 |
|---|---|
| 1.5" | $6.03 |
Color on Both Sides (Up to 7 Colors per Side)
| Size | 50 |
|---|---|
| 1.5" | $6.03 |
Color on One Side (Up to 7 Colors)
| Size | 50 |
|---|---|
| 1.5" | $6.03 |
Mold Setup Fees
| Size | 50 |
|---|---|
| 1.5" | $6.03 |
Custom Coin Customer Reviews
QR Code Challenge Coin FAQs
Yes. Send us the link you want the code to open and our art team generates the code, sizes it for the coin, and places it in the design — usually on the back, so the front stays free for your logo or insignia. There’s no extra artwork charge and revisions are unlimited, the same as any other coin.
The code can be rendered three ways: recessed into the metal so the pattern reads as shadow, filled with enamel so it reads as flat black on a light field, or printed for the highest contrast. All three are covered on our QR code challenge coins page.
Read more in our Help CenterYes, provided the design gives the code room to work. Three things decide it: the code needs to occupy a real share of the coin face rather than tuck into a corner, it needs contrast against whatever sits behind it, and it needs a clear margin — the “quiet zone” — with no lettering or border crowding its edges.
Keeping the encoded link short helps most of all, because a shorter URL means fewer, larger squares. A long link packs the same area with finer detail than a struck coin can hold. Scan the code in your digital proof with your own phone before you approve it — if it reads on screen, it will read on the coin.
Read more in our Help CenterNot the code itself — once the mold is cut, that pattern is permanent. What you can change is the destination, as long as you plan for it up front.
Point the code at a short link or a redirect you control rather than at the final page directly. The coins keep pointing at the same address forever, and you repoint that address whenever you like: a contest entry form this year, a results page the next. Organizations running multi-year coin programs almost always do it this way.
Read more in our Help CenterOur minimum for custom molded coins is 50 per design. Per-coin pricing improves at every quantity tier above that — compare them on our challenge coin pricing page.
If you need fewer than 50, our no-minimum custom coin builder lets you order as few as one coin, and stock and personalized coins have no minimum either. We can also produce a 5-coin pre-production sample against a larger order, though it isn’t cost-effective on its own.
Read more in our Help Center
