Have a look to Comieco fai da te!
http://www.comieco.org/le-nostre-prospettive/design-del-riciclo/video_faidate/spinotto.aspx
Comieco fai da te! is a project by ilVespaio and Aroproductions for Comieco – the National Consortium for the Recovery and Recycling of Cellulose-based Packaging. It explains how to create smartphones and tablets DIY accessories reusing cardboard packagings.
Spinotto is a phone holder made of cardboard designed to hang on the wall adapter and to hold your mobile phone or smartphone while charging. Watch this video, print the template and do it yourself reusing a spaghetti box without spending a cent and without consuming resources.
https://vimeo.com/45316160
Spinotto is designed by Sebastiano Ercoli and Alessandro Garlandini.