Jose Angel Olivares and Matthew Young had the idea of creating rhytmic patterns with roller luggage pulled across a specially manufactured surface as we encounter at airports for instance (picture me rollin’). “Tones are produced as the wheels of the roller luggage encounter different textures, and these tones will be arranged in a way to create beats. Multiple parallel surfaces are planned, as to allow for multiple bags to generate more complex melodies. The tones produced are modulated and amplified using contact microphones and Max/MSP.” it is still a concept but looks like a promising idea, hope nobody feels disturbed while speaking over the mobile. There is a similar idea designed for crossing cars.