Looks like someone just threw some blobs and shapes onto an image and then converted the linear brightness levels into a sine wave of alternating brightness levels , and then used that as a heightmap to generate Gcode from directly , or a mesh to load into a CAM program . If you are familiar with the freeware imaging program ' GIMP ', there ' s a function called Alien Map when you can get to from the ColorsMapAlien Map menu . Here ' s an example I just made to demonstrate it <| sep |> Cheers Brad ! It ' s been 20 years of hustle and wacky adventures . See you at a game one day ! <| sep |> They go to community college , get a fast track associate ' s degree , marry their high school boyfriend who just came back from a missionary trip , get a job through friends or church , and have a family . And live on credit cards .