fritsl’s 120$ self-propelled autonomous drumming robot on letsmakerobots is not only yellow, it has immense attractor written all over it. really. while finding its way to the nearest wide surface or single object it can drum on, it does a serious business of turning its sensors in a very paranoid fashion – by using three drumsticks, a microphone and a loudspeaker, it records patterns of its own (randomly invented) drumplaying he uses as a basis to drum to, though it can also synchronize to music or to your feet tapping. i’m on my way to find someone who jury-rigs one for me. (via wired)