Another keychain design, this time commemorating Google’s famous dinosaur video game (which occurs when you have no internet connection on the Chrome browser). It’s a fun game that helps pass the time, and it would be nice to have in a pocket-sized package.
This design borrows a screen and solar panel from a calculator (engineering or scientific calculator for a fancier dot matrix screen), the idea being you’d have this to play with when your phone dies. It features one recessed button, which is pressed for 2 seconds to power the device on or off.
The solar aspect could be removed for a more traditional battery-based device that can offer numerous features like a power bank or USB drive, but personally I’d rather have one less gadget to charge all the time.
Dave's Geeky Ideas 
I really want this !!!
I need one of these. It’s such a good idea!