A problem with using Pandora's Box to find an ID\SID to get a certain shiny spread is that you have to go through the whole game just to get one good spread (like a flawless shiny Zapdos), then play through the game again for another good shiny spread. So, I made a list of good spreads (29+ in all stats, 30\31 in Speed), and found out which ones were shiny together. This way you only need to play through the game once for multiple near-flawless shinies.
All you have to do is plug the PID of one of the spreads into Pandora's Box, it'll give you an ID\SID that will make all the spreads in the group shiny.
Since HGSS was just released today, I thought this would come in handy for most people. Sorry if you already started playing through it.
It can be found here.
Here are a few of the groups I've picked as an example.
PID Nature Ability IVs
e9b838a5 ADAMANT 1 31\30\31\15\31\31
69b8b8a5 CAREFUL 1 31\30\31\15\31\31
6c96bd8f BOLD 1 31\19\31\30\30\31 (HP Ground 70)
ec963d8f TIMID 1 31\19\31\30\30\31 (HP Ground 70)
ff8e2e5f JOLLY 1 29\31\29\12\29\31
7f8eae5f IMPISH 1 29\31\29\12\29\31
34f0e527 TIMID 1 30\11\31\30\31\31 (HP Grass 70)
b4f06527 MODEST 1 30\11\31\30\31\31 (HP Grass 70)