I Send a Test Transaction First Bitcoin T-Shirt

Some bitcoiners send a small first payment before anything large, and they will happily tell you about it. This tee puts that habit on the chest beside a plain test tube, with three short lines that say it every time.

Sending a small test payment before a big one is a habit many bitcoiners find both funny and sensible. The idea is simple: a tiny amount goes first, and the rest follows once the sender is satisfied it arrived. The shirt only says what the wearer does. It gives no instructions, no security advice and no promise that a test catches every mistake, so read it as a laugh about slowing down rather than a checklist.

Picture a self-custody study group, or a dinner where someone is about to pay without a second look. The tube sets the scene, and the three short lines land the joke. Anyone who double-checks an address will feel seen, and the friend who reads an address out loud twice will want one too.