Your own Pokédex to play Pokémon Go with extended battery life
Pokémon trainer and designer NPOOLE from SparkFun (an electronics blog) has created a 3D printable model of a Pokédex that holds extra battery power inside so that you can play for hours and make the longest Pokémon hunting trips while looking totally cool.
The 3D printed case has blinking lights, like the original Pokédex in the anime, and a lithium cell battery pack that feeds your smartphone with energy.
For the time being, it is only available for the Samsung Galaxy S4, but hopefully more users will edit the files and make it compatible with more devices (like the iPhone 6, currently in progress). You can find the files for printing the Pokédex on Github, which you can personalize to match your needs (and Pokémon Go team).
What do you think about it?
You can find everything about this project and the others that fans are working on here.