Arduino-Controled 4TH of july Fireworks Ceromony!!

well, at my dad's friends house, im going to be a DJ at this little celebration,but...my dad's home-made fireworks are dangerious so im making an arduino controled firework match!!!

due to my power-supply i got last x-mas, i can make it so arduino sends a Re-dender code [somthing i made a library for and im keeping it to myself cuz wrong move can result in fried chip O.O] to my code-reader and the relay would trigger, meaning the powersupply powering everything will set off the matches and BOOM!!!

this is in progress which means to pics yet =3