We used 123D Design to create a 3 in by 3 in object. After we learned the safety expectations and maintenance of the printers, we were allowed to print our object. The primitives I used were the torus (doughnut-like shape), a cylinder, and a cone.
My result:
A tool I thought was cool was being able to upload a photo to put into your object. As you can see I search uploaded a photo of a cupcake to put on my cupcake liner. The only requirement was that the photo had to be a SVG file, not a JPG or PNG file. This will be a technique that will be helpful in making a checker.