Elizabeth FishContributor, TechHive

Elizabeth Fish is a freelance writer who happens to run a hyperlocal news website in Lincoln, UK. She also covers all things geeky for TechHive.

Grace the robotic fish

GRACE the robotic fish can keep track of water quality, looks more like an airplane

A little robotic fish is able to inform you if your local waterway is clean or not.

You can now play Mario Kart for real, but banana peels are a very real risk

Love Mario Kart? Luckily for you Waterloo Labs figured out a way to make the gameplay experience real.

Raspberry Pi-powered pinball prowess prevails in this DIY creation

Some of the best projects for Raspberry Pi aren’t just hacks: they’re pinball machines for big kids.

DIY arcade games coffee table is the best way to waste your evening

Playing retro games on your coffee table means you’ll never really get anything productive done again.

The Force is strong with this Star Wars X-Wing coffee table

Why have normal coffee tables if you can have this ridiculously detailed Star Wars one?

This computer in a briefcase gives new meaning to the term 'casemod'

Who needs a typical computer case when you can just cram it all into a suitcase instead? (Don't answer that.)

Drexel University's MacBook vending machine lets you keep your laptop at home

What if you could borrow a laptop to use for just one class? A new vending machine at Drexel University could let you do just that.

DIY rainbow lamp brightens up your home; pot of gold not included

Make your own fancy multi-colored lamp with a strip of LEDs and a microcontroller.

DIY time-lapse rig lets you produce impressive videos, makes friends jealous

Make yourself a kick-ass time-lapse rig using a Raspberry Pi controller and items from eBay.

This Portal birthday cake is no lie, has nothing to do with CES

Why bake normal cakes when you could have a Portal one instead?

Turn your iPad mini into a dashboard console screen with this hack

Be the envy of your motorhead friends and put your iPad Mini in your car’s dashboard.

This year in geek: The best robots of 2012

It should go without saying, but boy do we love robots. No matter how big or miniscule the robot, chances are it appeared on this blog. With that in mind, it seems only natural to pay homage to some of the best robots over the last year.

Roboy puts human-like guts into robot bodies; human obsolescence edges closer

A project aims to make robots not only similar to human on the outside, but on the inside too.

AR Tardis

Augmented reality mini TARDIS is bigger on the inside than it is on the outside

Make your Doctor Who TARDIS cooler than the average fan merchandise with a custom app and augmented reality.

What could possibly go wrong when dogs drive cars? (and other stuff you missed)

Want to see an abandoned dog learn a new trick that’s better than anything your dog can do? Or maybe you want to crack out some cool Christmas tricks on your iPad? You're in luck: We have both in today’s edition of GeekBytes.