In the 40th entry in their “Girl, Mechanical device, and Power” series, Nyantype Magazine presented Mika Akitaka's Mecha Musume Mokocchi design, a hardware augmented version of the Watamote heroine.
Some earlier examples
Meanwhile, there are previews of the covers of volume 5 of the Watamote manga - out in Japan on the 21st
And the fan book
via Yaraon and
Scott Green is editor and reporter for anime and manga at geek entertainment site Ain't It Cool News. Follow him on Twitter at @aicnanime