Good Question. The easy way to start is to Customize using a co-creator https://www.shapeways.com/creator/ringpoem or create an item from a Sketch https://www.shapeways.com/model/112908/draw_your_own_earrings .html or Learn 3D modeling software, SketchUp is free and possibly the easiest to learn Blender is also free but has a steeper learning curve If you are a student you can download 3D software for free from Autodesk like Inventor, 3DS Max, Maya, Check out our tutorials on getting started too https://www.shapeways.com/tutorials/ Good luck