Metal Xtool black cards framed with wood, with magnets inserted in the corners to stick onto things!
Ok, so this one is a bit of a doozy due to how many laser settings I have going on in LightBurn.
In the lightburner file I attached, I also included a way to make wall hangers for the cards if you don't want to use magnets. Assemble those by snapping them together and putting glue onto the corners. Then just glue to the frame and slot onto a nail, screw, etc.
Zap the business cards out then slot them into the frames with some glue. You're a creator, Harry!
Beware, the settings above didn't allow me to input dot duration per us, which seems to be a F1 only thing. It's actually 10 dot duration/us.