Hereafter are two videos showing bio-inspired swarm robotics behaviours implemented with e-puck robots by the students of the swarm robotics atelier at the EAIA’07 summerschool on collective robotics. The first behaviour is inspired by the collective choice of shelters displayed by cockroaches. The video shows only a part of the process, during which a group of cockroaches/e-pucks tries to select the same dark area. The second behaviour is inspired by the blinking synchronization of Malysian fireflies. Each firefly/e-puck robot blinks more or less at a similar frequency but reset his waiting loop as soon as it perceives robot another blinking. Very funny patterns emerge from this interaction. This atelier was organized by Guy Theraulaz, Francesco Mondada, Alexandre Campo, Michael Bonani and myself. ~~~~~