QR Code Keychain Generator

Put any link, phone number or message on a keychain, on its own or under a name. The QR code is generated and raised as relief on a flat plate with a keyring hole, so a phone camera reads it off the print itself. Module size is derived from the keychain size you pick, and the generator refuses to build a code whose squares would come out too small to scan rather than handing you a model that only looks right.