You don't.
Jirachi does not breed. The only way to have a jirachi egg is through hacking.
there is no jirachi egg trick, but there is a celebii egg trick in Pokemon crystal
THRE IS NO JIRACHI EGG TRICK THEY JUST MAKE IT UP
yes
There is only two legendary Pokemon who are found as eggs, Manaphy and Jirachi. Manaphy is found as a egg on Pokemon rangers ex. mission. Jirachi is found as a egg in the Hoenn at the Rocket Station by a scientist.
It's actually pretty easy. When you get the bad egg (I think it was the Jirachi egg if you cheated on the event) save, then turn off your game. Take out the action replay, and put only your regular game into the DS card slot. Then, the game won't freeze, but you'll have to walk 250,000 steps to hatch the Jirachi egg. If I were you I'd just get the poke modifier action replay cheat and get jirachi that way.
No, it cannot make a Master ball when JIRACHI is in the daycare [If it is a girl with a Ditto it can lay a egg].
Why do you people want to cheat with AR code? A legitimate way of obtaining Jirachi is to get it on a Pokemon Colloseum pre-game disk. There is an AR code for jirachi but im not sure about the egg. Off topic: do NOT get a manaphy egg, when it hatches it crashes.
You have to get a Nintendo gamecube with the game Pokemon box, start a new game and you'll get jirachi in a egg as a present.
jirachi is not in sapphire
No, you cannot get Kecleon from Jirachi.
jirachi is not on seven island, you get jirachi from the Pokemon colosseum preview disc.