An ad agency in brazil has designed a print ad that turns into a simply DIY iPhone speaker. The idea was to promote the one year anniversary of Coca-Coal.FM Brazils online radio platform.
Users are asked to roll up the magazine to create their very own Coca-Cola iPhone speaker.
Even thou this might be the first example in print and personally think its ingenious it does remind me of these
Paper Cup Speakers
http://blog.watashii.com/2008/11/make-your-paper-cup-stereo-speakers/
Ceramic Paper speakers 2007
http://gizmodo.com/ceramic-paper-speakers/