Made with a few other cards of the same style/paper, this is my favorite. The paper comes from a stack I got at the craft store. The little lightbulbs are embossed (manufacture) and the robots come from the stack too.
I found a font (dafont.com) that went well with the robotics feel to the card. I used multi-colored brads to mirror the colors from the cardstock. All edges on the card are inked with brown.