Quantity   Component name
1 × PLA or other materials for a 3D-printed form
22 × 3mm sphere magnets ... for the scorecards, better more as reserve...
1 × magnetic foil or piece of metal ... for the scorecards, 190*140mm
1 × Arduino, MP3 Player shield, RFID reader, Speaker, RFID-sticker (dependent on number of cards)) ... for Braille-Memory
1 × Arduino Nano, 5V Relais, Washer pump, bottle, 2 4AA battery holder, Sparkfun EMG kit ... for Water gun
1 × 3mm 3cm long allen screw, 2 3mm washer, 3mm teflon tube, 3mm nut, endstop button, Phone jacket with wire ... Big Buttons