Oh sure, we've seen countless drum machine hacks over the years, but there's just something special about one that's so simple, yet so fulfilling. D-Touch is hailed as a visual markers recognition system "that enables the development of low-cost tangible user interfaces and mixed reality applications," and here, we're seeing it used to create movable sounds. Users simply print out the cubes, fold 'em up, add lentils and arrange them on the highly sophisticated A4 sheet of paper. We get the feeling this one won't cost you much to replicate, so why not hit the read link for more instructions after digging into the vid just beyond the break?

[Via Engadget German]