Like these.

Dalek Tree

Such a perfect marriage, it’s a wonder no one’s done it before. It’s all the more impressive when you zoom in and see just how simple it was to make out of ordinary household items like a laundry basket and a plunger. By Lindsay Testolin.

Lightsaber Tree

Okay, so technically these aren’t lightsabers — they’re flourescent light bulbs. But you know you thought “lightsabers” when you saw it, too. By Gareth Pugh.

Tron Tree

At first pass, this tree looks like it came straight out of the old-school Grid from the original Tron. But zoom in and you’ll see that these rows of lights are just that: lights still inside their plastic holders that they come in when you buy ‘em. Very clever. By Richard Whittaker.

Hard Drive Tree

They may look like CDs, but these are really old hard drives, repurposed as a shiny, metal Christmas tree. It took 70 hard drives to create. By Trigger.

LEGO Tree

Straight from this year’s Christmas display at Legoland in San Diego, this is reportedly the world’s largest LEGO Christmas tree. It stands 30 feet tall and was made using 245,000 green Duplo-sized bricks. It’s decorated with over 240 LEGO ball ornaments, and real lights.

Tesla Tree

Made using a huge Tesla coil and a long photo exposure, it’s not technically the exact shape of a Christmas tree (the traditional triangular pine), but it’s still wicked cool. Even more impressive are all of the different colors that electricity addict Peter from Australia managed to create with it, which you can see more of on his website.

Old Computer Parts Tree

What better use for old computer parts like keyboards, motherboards, mice, and chipsets could there be than to paint them red and attach them to a wagon? By Sunny Brook.

Pac-Man Tree

By now, I’ll be more surprised if you haven’t already seen this popular Pac-Man inspired Christmas tree from Madrid. It’s been a yearly installation for a while now. But it’s still awesome. Photo by Antonio Garcia Rodriguez.

Cars Tree

This one’s for my son, who’s obsessed with all things Cars. It took one devoted parent to create this spiral, winding ramp and fill it with Pixar characters. By Danny Novo.

Spinning Tree

You know those tacky LED/fiber optic Christmas trees? This is what they look like when they’re attached to a motor and spun around with a long-exposure camera running. I want one. Even though it reminds me of that Doctor Who episode where Rose and her family were attacked by a killer Christmas tree. By Kevin Kotterell.

Apple Tree

Because there’s no such thing as a “geek list” that doesn’t include at least one Apple entry. By Metamorphosis.

OLED Tree

The computer geeks at GE made this tree a couple years ago out of some of those shmancy, bendable OLED computer screens that will someday allow us to wear flexible screens as bracelets and whatnot. A world’s first, at the time. By GE.

Samsung raised the bar for innovation this CES 2010, bringing us one step closer to the floating digital interface we see in Avatar and Minority Report. So it’s baby steps with transparent screens. If you think about it though factors like sunlight glare and privacy will easily compromise usability. Here are five uses for the see-thru screen portable.

1. Team Based LAN Gaming
Voice chat is a staple in today’s gaming industry. But sometimes your team wants to have a look at your screen’s killcam to know where exactly that n00b tuber is chucking out grenades. Rather than give your neck a bad strain, just look forward.

2. Call Centers and Peon-Level Cubicles
Finally, a way for floor managers to tell if the staff is idling away on Farmville, Mafia Wars, or downloading porn.

3. Decor
Picture several of these 14 inchers platformed on a ramp with a full screen slideshow or movie playing simultaneously. Or ambient decor in a restaurant. It makes the perfect MP3 player side by side those transparent JBL speakers you always wanted.

4. Public Computer Kiosk
These things make for the best public computer kiosks in airports and coffee shops. If you ever want to find a way for your customers to limit their Internet time, have a few of these in very public places so that they stick to doing only the essentials and leave.

5. Below the Line Transparency Campaign
You know what this country needs? A little bit more transparency. Here’s a pitch to you, Samsung. How about having this as a front desk cubicle computer so that everyone can see your bosses’ real schedule? How about having this as the POS or reference computer at the cashier so that you don’t have to hide the dealer’s price from your customers? Put this in front of the restaurant so you know if your table is really “reserved.”

[photo c/o Techie via Gizmodo]

Here’s a great little digital clock made up from OLEDs. Each figure can be attached to a wall, has its own power supply, is touch-sensitive and even has a light sensor built in to reverse the illumination based on the ambient light.

It’s certainly minimal and would look great on the wall. Unfortunately it doesn’t have a manufacturer yet. Check out the pictures below.