Chocolate. iPhone covers. The calls of the wooly mammoth--we get it. 3-D printing is novel, often leads to real innovation, and eliminates friction in rapid prototyping and scientific and entrepreneurial endeavors. It even hints at a mouthwatering future where an epic burrito can be squeezed out from a desktop device at the slightest twinge of a fourth-meal craving.

But it's practically a universal rule: The moment someone uses new tech to make a fetus, it's time to pump the brakes. Not every one of the following 3-D printed things is absurd. Some are inventive, but inventive isn't the same as innovative. And the couple of entries here that do have use are just odd. But they're unquestionably the symbols of the dawn of 3-D printing, a time we'll look back on as an "experimental phase," like the semester in college when you tried out an asymmetrical haircut or a creative facial hair scheme.

Here's the weirdness--coming right at your face.