Please note that the 3D print is not food-safe, the next step would be to use the 3D print to make a casting mold and cast it in a food-safe ceramic. A suitable tutorial for that next step can be found here: Lifecasting - hands
The benefits of the technique used in this tutorial are efficiency & speed as well as the relativity gentle learning curve for those without experience in CAD (computer assisted design).
You will need:
-iPhone or iPad
-123D Catch from the app store (free)
-Meshmixer computer program (download for free here)
Step 1: Preparing for the Catch
There are two approaches to the catch, with an iphone/ipad or with a digital camera & computer. In my experience I have found the iphone/ipad method to be the fastest & most reliable so that is the method I will explain If you would like to know the other method (which is actually very similar) visit: http://www.123dapp.com/catch/learn
For the iphone/ipad approach download the (free) 123D Catch app from the app store 123D Catch App. Then create an account & log in.
You (person having their head catched) should be sitting down with enough room around them for the "assistant" (person assisting taking the catch) to walk around them taking photos keeping the catchee's head within the frame.
The environment should be as evenly lit as possible but does not require studio quality backdrops or lights (in fact it works better without them).
The catchee should sit as still as possible and stare directly forwards.