I'm an engineer in my day job and do mechanical design. I am relatively new to 3D printing, but I have 11 years of engineering experience. I also do more artistic things at home as my hobby. With Shapeways, so far I have designed rings, pendants, and charms. I've also designed a vase and a picture frame. Cost really depends on the complexity of the project and how many pieces you plan to purchase. What can I design for you?