Flashing led pencil case project kit light stitches flower the light stitches flower led pencil case kit is a ks3 textile and electronics project that uses smart textiles and electronic components to create a flashing led pencil case br br the pencil case uses 2 flashing green leds for a visual display the led is activated when the metal zip is closed zip acts as a switch turning the led on off br br iframe src player vimeo com video 98931817 width 500 height 375 frameborde