I employed blade cutter machine to create a 3D pop up card from paper.
My intention was to visualize Arduino UNO (if you were not able to recognize it, I failed :) The chip is meant to be Atmega328:
And here is the card inside an envelope:
The Hackerspace text is created using a stamp made by replacing the cutting head by a home-made laser head:
You can download the card SVG design here: