I'm using v2.76, and I want to create a "stamp" effect with letters. I watched a video on how to do this, and the guy said to use the boolean modifier. I followed the steps exactly to the point where you select the modifier, and it does not show up. I was using cycles render, as was the guy in the video.
Examples:
https://365webresources.com/wp-content/uploads/2014/02/Leather-Stamping-Logo-MockUp-2.jpg
http://gadgetsin.com/uploads/2011/05/bullet_shell_cufflinks_1.jpg