The T-shirt is not available in—or on, lay-dee fans—the model shown. It comes in either black or yellow in regular man-Muggle sizes and will cost you 15, or just over 30 bucks. [Harry Potter Enlightenment Project]

Logically speaking, the rest kind of explains itself. We especially like that the R2-D2 hoodies and tees by Pleb because they tell of a more world-weary version of our favorite robot. He's loved, he's lost, he's hung out with the types who adorn their cars with fuzzy dice.

Prices start at $40. – Mark Wilson

Product Page [via ShinyShiny]

Although we still have faith in the movie, all these cheap accessories and tie-ins aren't doing much for public confidence. Click on each shirt if you don't value your eyeballs in any way.

– Jason Chen

Ain't It Cool [via Crunchgear]

Is this the "I'm with Stupid" shirt of this century? Maybe, if legions of geeks can get over the epilepsy inducing animation and the feeling of a warm battery pack digging into the ribcage. I'll pass. When it comes to "technical clothing" I prefer the Star Trek like suction-fit of Underarmor thermals. They keep you comfortable in varying climate, and instead of Pong, they show nipples.–Brian Lam

Pong Shirt [ThinkGeek]

The editors—that means us—will also come up with some slogans ourselves some time in the upcoming weeks, if we can manage some downtime between CES and MacWorld. We'll pit the winners of both in a slogan-off to decide the true winner of Gizmodo Shirt Contest 2K7. Thanks again for your submissions! – Jason Chen

Plan B: We'll have a new thread where readers can throw in ideas for slogans. Us editors will come up with some slogans of our own as well. After we pick the best ones from both batches, we'll put them all to a vote. – Jason Chen

If you like a slogan, click the "I'd buy" to bump it up a notch. If you hate a slogan, vote "No way" to tell us you'd rather not wear that on a shirt. You can vote for multiple entries, the result of which is (hopefully) the best entry rises to the top.

If you don't know how to comment, go here. If you do know how to comment, make yourself heard. – Jason Chen

Contest Thread and Rules [Gizmodo]

Also, would you like this design (left) on a shirt? If so, let us know in the comments on THIS thread (entries go here), and we'll gauge interest for a separate printing. – Jason Chen

Contest Thread and Rules [Gizmodo]

In any case, you can enter as many times as you want, and if you don't know how to enter click here. Good luck! – Jason Chen

Contest Thread and Rules [Gizmodo]

You can enter multiple times, and if you still don't know how to leave a comment, look here.

And since we're up to 60% of you that read this last time, here it is again. We're looking for a slogan, like Azdak's above or Lifehacker's "Productively Lazy", and not something like "Gizmodo: Where commenters never listen to instructions." – Jason Chen

Contest Thread and Rules [Gizmodo]

And to reiterate, since nobody seemed to listen yesterday, we're looking for stuff like the type of slogan like "Productively Lazy", which won Lifehacker's contest. And not something like "Gizmodo: Something here." Got it? – Jason Chen

Contest Thread, and Rules [Gizmodo]

Remember, we're looking for stuff like the "Productively Lazy" shirt that won Lifehacker's shirt contest, and less stuff like "Gizmodo: The Site That You Accidentally Set As Your Home Page But Now Don't Want To Change Because It's So Awesome". You get the picture. – Jason Chen

Contest Thread, and Rules [Gizmodo]

We've got the designers, we've got the t-shirt makers, but now we just need a slogan. We want the official Lifehacker Gizmodo tees to say something clever. Something witty. Something original. Something.... written by you.

So here's the deal, lifehackers Gizmodians: submit your best t-shirt slogan ideas in the comments of this post. We'll pick the best ones - the ones that most capture the spirit of the site - and put them to a vote. The winning slogan will get turned into a swanky official Lifehacker Gizmodo tee, and the reader who submitted it? You get a free t-shirt PLUS a personally-autographed copy of Lifehacker the book, shipping next month Nintendo Wii instruction manual.

What do you say? Put on that thinking cap and dazzle us with your brilliance. Deadline for submissions is next Thursday, December 7, 5PM left coast time. Go to it! – Gina Trapani Not Gina Trapani

Official Lifehacker T On Sale [Lifehacker]

The scientists who developed the t-shirt said that the technology could be adapted to other, more useful functions, like improving coordination or asking out girls. What the world needs now is a device to allow for air blogging: that's where the money's at. – Nicholas Deleon

Every wanna-be rocker's fantasy comes true [CSIRO via Yahoo!/AP]

Just in time for those rockin' summer concerts is this equalizer t-shirt from Bim Bam Banana. This tee, called the Show Off T-Shirt, has a built-in sound sensitive graphic qualizer panel with a EL panel that will light up depending on what beats are in your general vicinity. Only small and medium sizes remain for this $72 shirt and it will likely make you the coolest or easily the geekiest person at the Phish concert this summer.

Product Page [Via Gearlog]

A few years ago we went out with a guy who turned out to be both a raver and the biggest jerk we've ever dated. To this day we're not sure which one's the bigger crime against humanity, but this stupid t-shirt reminded us of him. The T-Qualizer is a 100% cotton shirt with a sound sensitive graphic equalizer panel that lights up to the beat of music, each bar activated by a different frequency. Just think: for only £29.99, you too could be a douche.

T-Qualizer Sound Activated Flashing T-Shirt [The Gadget Box, via Uber Review]

Muzikwear Smart iPod T-Shirt [I4U]