Father's day is Sunday, June 20th, 2010. As a wise man called JoCo once said, Mom and Dad rolled the dice and won your genome. All that geek is totally coded in your DNA. Thank Dad for his contribution! Use the code THXDAD to save $10 off $30 from now through 11:59 pm EDT on Friday, 6/11/10.
http://www.thinkgeek.com/interests/dads/

Dads always give the best stuff. You know, like when Zeus gave Perseus that flying horse for his 16th birthday? We're pretty sure his insurance rates went through the roof, but he's a dad and dads do cool things like that. Speaking of cool dads, Patriarch Appreciation Day is just around the corner (6/20). We've gone to great lengths to assemble a fine selection of epic treasures that will delight and astound even the most granite-faced pater familias. Oh and there's nothing wrong with mixing a little Greek and Latin.
http://www.thinkgeek.com/interests/dads/

If a boring red Swiss Army Knife just didn't do it for you, these officially licensed LucasFilm collectible editions will! Darth Vader's knife is bold in black, red, and yellow as he ponders the destruction of planets (or perhaps why he needs a tray at the cantina). Also choose between a stormtrooper version and baby blue and white artistic rendition of R2-D2 and Mt. Fuji. Yes, Mt. Fuji. We don't know why either, which is why it's awesome.
http://www.thinkgeek.com/gadgets/tools/da99/

You've just finished grilling the perfect panoply of meats and veggies. You can still hear the sizzle as you arrange them on a plate. You have your titanium spork at the ready and a cold one standing by. You think you have the most awesome meal waiting for you, but you are wrong. You are missing one thing: AWESOMESAUCE! For real. Awesomesauce is loaded with peppers and garlic and is hot with a capital Awesome! Seriously, this complex concoction will turn any meal into a banquet. Because remember: without Awesomesauce, your meal is just a pile of FAIL.
http://www.thinkgeek.com/caffeine/wacky-edibles/dc05/

Sometimes it's a case of chicken or the egg: which came first, the geek dad or the geek kid? It's a toss up, depending on your family. But the best families are full-geek families. And sure, this book is called GeekDad--but that's just because it's written by the dude who writes GeekDad for wired.com. It's really a book full of geeky projects for geek adults and their geek offspring to enjoy together. So many projects--you better hurry up. Gotta do them all before your geekling is old enough to have spawn of their own!
http://www.thinkgeek.com/books/nonfiction/d765/

As it turns out, when they weren't shoeing horses or forging weapons and armor, blacksmiths liked to use their scrap metal to make puzzles. After all, it's much easier to haul a few puzzles than that new breastplate you just made to the tavern to amuse your friends. Besides, what's more fun than buying your friends a round of ale and watching them getting frustrated for hours on end?
http://www.thinkgeek.com/geektoys/games/ddc1/

The MINOX Spy Camera turns you into Agent M with a personal License to Shoot. Less that 4 inches long, there's a ton of power packed into this tiny cam. Not only does it take pictures in 5.1 megapixels, it also captures documents in close focus range of up to 50 cm. Next up is the Metallic lighter secret agent cam. Straight from Q's goodie box, this lighter is the first to record HD quality video. Supports video resolutions up to 1280x960 with 4GB of storage. Your gadgets should look as good as you do, don't you think?
http://www.thinkgeek.com/spy-cameras/

Seems like all our friends are either getting married or interviewing for new jobs these days. Either way, it's time to drag out the monkey suit, but just because you're stuffed into a three-piece doesn't mean your geek chic has to suffer. Check out these new cufflinks in three flavors: Batman, Flash Drive, and Bottle Opener.
http://www.thinkgeek.com/cuff-links/

The peephole in your door is useful if you want to look outside and see who's at your door without opening it, but I wouldn't call that a privacy device. Just ask Erin Andrews. Plus, sticking your eye in front of that hole alerts bad guys, salesmen, and your annoying next-door neighbor that you're home and ripe for intrusion, pushy sales tactics, or incessant yammering. Keep your peephole secure by attaching a video camera to it! This wall-plate attaches to the inside of your door, and gives you a nice wide-angle high-res view of the outside without letting the outside see in.
http://www.thinkgeek.com/gadgets/security/d9b3/

With just the Kiwi WiFi and a single app, you could be monitoring tons of vital data about your car's performance. Know exactly what that "Check Engine" light means, keep an eye on your fuel efficiency, and much, much more. Moreover, you won't feel woefully uninformed when you go to your friendly local mechanic's shop.
http://www.thinkgeek.com/gadgets/car/dcf4/

It's like the Wii game, but in Real Life (TM). Set this course up in your living room and you can be racing Mario, Luigi, and Princess Peach around the track and through the loop-de-loop at full speed tonight! With a digital slot car set, you can run all three cars at the same time, share lanes and even pass other cars using one of the two passing lanes. Totally sweet and much more realistic than being stuck on one track the whole time!
http://www.thinkgeek.com/geek-kids/7-13-years/da0b/

The principle of the pendulum-clock dates back to Galileo Galilei, but it was Huygens (the man, not the Saturnian space-probe) who built the first clock based on the regular back-and-forth of the swinging pendulum. The motion of the pendulum regulated the precision of the timepiece. Now that we've got Quartz movement, and cesium-133 oscillations, the pendulum has taken second fiddle. However, in an effort to update itself, the pendulum is now the clock, and the clock is now the pendulum! Now the entire face of the clock moves to the beat of time!
http://www.thinkgeek.com/homeoffice/lights/da8e/

Once upon a time, there was water--and it was good. One day, a magic wizard blended water with some other junk and plants he had in his yard (wheat, hops, and barley). He cast a few spells, and lo! he had beer--and it was frickin' awesome. Seriously, though, beer has been around since about 9000 BC, and has been mankind's most favorite social lubricant. Now it's time to not only brew your own beer, but also grow your own ingredients with this kit. Then you can truly appreciate the wonder that is beer. Cheers!
http://www.thinkgeek.com/geektoys/science/dd60/

Need a mini stereo since your work has blocked iTunes? Check this out! The Kube is a portable mp3 player in a bite-sized, colorful cube form. Depending on the size of your microSD memory card, you can transfer up to 8,000 of your favorite mp3s from your home computer into your Kube. Five colors available.
http://www.thinkgeek.com/electronics/portable-audio-video/dd74/

The Rock Fairy has visited us again, this time to gift us with a shipment of Electronic Rock Guitar & Drum Kit shirts wearable by wee humans. Both shirts can be played like real rock 'n' roll instruments all day and are machine washable when you finally convince your kiddo to take it off. Listen up, Aunties and Uncles! This is the perfect gift to drive your sibling crazy. It's never too late for revenge, we say.
http://www.thinkgeek.com/kids-rock-shirts/

If your wee geek has ever wondered aloud about lightsabers and how they work, this will surely get them excited (and edumacated!). Build your own miniature 8.25" lightsaber and learn all about the principles of optics with this kit.
http://www.thinkgeek.com/geek-kids/7-13-years/d804/