> One of the great advantages of 3D Printing is the ability to design and create customized versions of everyday objects.
This is not a customized version of an everyday object. This is a completely new object nobody has ever made before. Calling it a toothbrush is like calling an automobile a "horseless carriage".
An automobile is a horseless carriage. Many new objects that displace older objects are refereed to initially in reference to the established product. This serves the same purpose as a toothbrush, so its entirely sensible to refer to in terms of a toothbrush. Calling it a "whizgonger" or some such is neither descriptive or useful for anyone.
This is not a customized version of an everyday object. This is a completely new object nobody has ever made before. Calling it a toothbrush is like calling an automobile a "horseless carriage".