• 3 water bottle (0€)
  • tape (0,50€)
  • hot glue (5€)
  • pieces of wood (0€)
  • silicon (2,5€)
  • 2 led high brightness (2€)
  • 2 Servo Motors (7€)
  • gear for servo (1€)
  • DC motor + propeller (17€)
  • Plastic bowls (4€)
  • saucer (0€ stolen at morther)
  • nails and other metal parts (2€)
  • arduinoBT (100€)
  • Android phone (anything Android like HTC dream or LG Linkme or HTC Desire that I used)

Globally 141€