Step 12: Command P
Export your file as a .stl
Currently, in 123D, you must first sign in with a username and password to enable all of the Save As options.
Now you are ready to print. Several 3D printing services are available online, or if you are lucky to have access to your own printer, you could print out several versions of your own Super Personalized Candle Holder or make them for others.
Thanks for your comments on this Instructable’s clarity and room for improvement.
I will upload an image of the actual shadow as soon as one is available. The speedy draft print didn’t include the internal cuts that require higher resolution.