As both Bittle and Lego are often used in STEM education, I designed a 3D-printable back cover that is compatible with Lego bricks! https://www.printables.com/model/795047-petoi-bittle-lego-cover Wouldn't it be cool to have this as an official accessory? Lego's patent expired some years ago, it opens up so many possibilities.
Nice!❤️❤️❤️