Are clocks passé? Just because everyone has a smartphone doesn't mean a dedicated time piece is unnecessary. On the contrary, now that clocks and watches are not really needed to tell the time, you can use them for other means as well.

While watches are getting smarter and smarter, wall clocks generally remain their old stupid self. But they no longer have to be circles with plain numbers. Whether you're actually a geek or not, you won't be able to withstand these unique clocks.

Super Mario Bros 3 Clock ($9.99)

super-mario-3

Who said geeky clocks need to be expensive? icentre9 is an Etsy shop that offers hundreds of clocks to choose from, ranging from my favorite Super Mario clock you see above, to beer clocks, Star Trek clocks, sports clock, and pretty much anything else you can come with. You can even order a customized clock with the picture of your choosing.

For $9.99, I don't expect these to be of exceptional quality, but hey, it's not like you need the clock to actually tell the time, right?

Equation Clock ($25)

equation

I have no idea what this clock says, but Math geeks are bound to enjoy a clock only they can read. Other than its unusual numbers, this clock offers a simple design that will appeal to almost anyone. There is a key to all those weird symbols on the website, so you may enjoy this one even if you're not a Math geek. Just to spite everyone else who can't read it.

If you're more into black, you can check out this clock's sibling which comes with different equations, and costs $30. There's also another version of this clock over at ThinkGeek for $25.

LED Binary Clock ($25)

led-binary

I already mentioned this clock when discussing geeky toys for students, but no geeky clock collection is complete without it: the LED binary clock. Joining the group of clocks most people can't read, this is another way to decorate your room while confusing the enemy. In fact, many people might not even realize it's a clock, wondering what this weird contraption on your desk might be.

If you're into this stuff, you'd be happy to know the clock can display the time in true binary as well as in powers of two binary mode. Yay!

Tetris Animated Alarm Clock ($30)

A Tetris game that also tells the time? It's all coming together in this Tetris-themed animated alarm clock. While you can't actually play with it, watching those numbers change brick by Tetris brick is pretty mesmerizing. To top it all off, it can even wake you up to the sounds of the Tetris theme. What more could you want?

Customizable Zazzle Clock ($21-$32)

zazzle

If you have something specific in mind for your clock, and can't find it online or in any store, Zazzle lets you create your own clock design in one of three different shapes and sizes (small round, large round and square). If creating a design from scratch is too much, Zazzle also offers quite a collection of geeky designs, such as the 404 clock you see above.

The cool thing about these ready-made designs is that they are customizable too. For some designs, you can actually go in and move elements around. Others are not as customizable. Just click the "Customize it!" button on your favorite design to find out what you can do.

Carbon Fiber Bike Chain Clock ($44)

bike-chain

There is such a thing as bike geeks, and for them, this is the perfect clock. Made of an actual bike chain, the clock can serve as a constant reminder of your favorite vehicle, even when you're stationary in your room or office. Other than the bike chain, the clock is made from carbon fiber, and can be either hung on a wall or placed on a desk using the included stand.

If you look around the LedonGifts Etsy shop, you'll find this clock in several more colors, as well as other interesting bike and car themed clocks you might like.

Recycled Computer Clock ($35-$56)

computer-recycled

Can a recycled motherboard, a hard drive or a circuit board become a clock? Apparently they can, with a little help from an Etsy store called ReComputing. What you see above is only an example — the store offers dozens of different clocks to choose from, all made from recycled computer parts.

If you're interested, the store also offers other items made from recycled computers, such as jewelry, belt buckles, keychains, and more.

Star Wars and Star Trek Clocks ($99-$130)

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This gorgeous Star Trek clock, as well as the Star Wars version you see below, are sold on Etsy by YOUgNeek. According to the descriptions, these clocks are handmade and unique, so the order of ships you get is different for every clock. You can also mention some of your favorite ships if you want to make sure they're included. The Star Wars version can include all sorts of elements from the famous movie series — not just ships.

star-wars

While these clocks are much more expensive than other options, they're made of brushed aluminum and glass, as opposed to plastic, so you definitely get some better quality for you money. At least on paper.

Are you convinced that you need a clock? I can see where you're coming from. If you came all this way to find a geeky gift but you're not convinced, here are some more geeky gift options that are not clocks.

Do you own a geeky clock? Dreaming of getting a specific one? Tell us about it in the comments.

Image credit: magro_kr