Chris Barrett/PRserve Screenshot by Chris Matyszczyk/CNET

I have come to terms with the notion that we will all soon be wearing glasses in order to surf the Web, check messages, and pretend we work at Google.

Some, though, are still concerned that the glasses offer too much opportunity to photograph or film people surreptitiously.

Defenders of the Google faith point out that no, no, you can tell when the glasses are in use. There's a light that beams to the world.

A twisted few find this unfortunate. They want to be cleverer than thou and more creepy than thou.

May I present, therefore, the very fine Google Glass 3D Printed Sunshade?

This is the invention of Chris Barrett, a PR man who has made some hay by being a Google Glass explorer and, well, exploring the boundaries of life and taste.

It was he who was first to film an arrest using his new glasses.

It was also Barrett who wandered into an Atlantic City casino beglassed. And, in what seemed then as the apogee of Glassing fame, Bon Jovi's keyboard player even wore Barrett's goggles during a show.

Barrett, though, was having personal issues with his eyepiece. He told me that he was having trouble seeing the graphics when it was sunny.

So he got together with Next Fab Studio. Together, they created the 3D Printed Sunshade.

You see, he'd tried wearing a hat, but that didn't really work. With the Sunshade, he's happy, as will be those who can download the open-source code.

Also in their happy place will be those who are slightly less honorable than Barrett.

One aspect of the Sunshade is that it obscures the light that tells you Google Glass is in use. You are now free as a bird to shoot whatever you like, whenever you like, and from whatever angle you can get your head around.

Accused of encouraging sneakiness, Barrett repeated that his only motivation had been poor visibility during sunny days. He told me: "I did not create the Sunshade to be sneaky. The 3D printed Sunshade does make Glass less noticeable. Less people ask me what I'm wearing when they can't see the prism light up."

Every new technology creates aspects that the good-hearted wish didn't exist. Sometimes, though, I wonder whether the good-hearted are so enamored of the technology that they choose to enjoy a little denial.

Barrett insisted: "With any new technology like Glass or a wearable watch with a camera, it's up to the user to decide how and when he or she will use the camera to record video or take photographs."

Of course he's right. Google Glass is not a cheeseparing invention. But Barrett's Sunshade has now given a eyeful of glee to those whose core interests might upset many.

Will someone now invent the equivalent of a missile shield defense that prevents you from being photographed when, say, you're out on the street?

Where's that invisibility cloak when we need it?