Use casebuyer: marketing
Trade show follow-up
After a trade show, everyone gets the same thank-you email. Two days later it’s forgotten. A physical drop on the visitor’s desk brings back the conversation that started on the show floor.

The trigger
The visitor came to your stand, or you went to theirs. There’s already a face and a conversation — the drop refers to it explicitly.
An example// AI newspaper
A week after the trade fair, the ten warmest stand visitors receive a box with an AI newspaper: their company on the front page, with a look back at the conversation you had. The QR leads to a page that picks up the demo where it left off.