We’re excited to announce you can now purchase I Make My Case codes at your local RadioShack to design your own custom case on Case-Mate.com

To celebrate we’re teaming up with @RadioShack to give away free I Make My Case codes over the next two weeks on Twitter!

Follow & Tweet to Win!

Here’s how to enter:

1. FOLLOW @RadioShack and @CaseMate on Twitter.

2. TWEET or INSTAGRAM us your favorite Valentine’s Day picture – include @RadioShack and @CaseMate and the hashtag #iMakeMyCase

3. The fun begins Friday, Feb. 10, 2012 at 11:59am EST and ends Saturday, Feb. 11, 2012 at 12pm EST (though you’re always welcome to share awesome photos with us!)

4. Winners will be chosen randomly and announced by @RadioShack after 12pm EST on Saturday, Feb. 11, 2012.

No payment or purchase necessary to win. Neither a purchase nor payment will improve your chances of winning. While you’re pretty cool in our book, you are not a winner of this contest yet. Void where prohibited. Must be a resident of the 50 United States to enter. Contest begins Friday, Feb. 10, 2012 at 11:59am Eastern Time and entries must be received by 12pm Eastern Time on Saturday, Feb. 11, 2012.

Want to design your own case? Well grab your favorite photos and we’ll show you how below!

1. Upload a Photo

First go to Case-Mate.com and click on Custom Case. To design a case using your own photos click on Get Started or if you want to remix art from professional artists you can click Get Inspired.

2. Choose Your Device

Next choose your device. You can design a case for the iPhone 4/4S, iPhone 3G/3GS, Blackberry Bold 9700/9780, Blackberry Curve 8520/9300, Blackberry Bold 9900/9930, Samsung Galaxy S (T-Mobile Vibrant), and iPod Touch 4G. We will be adding more devices to this list so stay tuned!

3. Layout Options

Now you’ll need to choose the layout for your photos. You have four fun layouts to choose from: a single image to cover your whole case, three up, a photo booth style layout, and the grid to show off multiple photos.

4. Upload Instagram and Facebook Photos

In addition to uploading images from your computer, you can also upload photos from your Facebook and Instagram accounts. Click on Upload Images and in the top left-hand corner you can choose which accounts you want to connect to. Once you have connected each of your accounts, you can drag and drop photos into your photo gallery.