Unfortunately, you cannot obtain the Wish Stone again after you have lost it. The item is obtained as a reward for a special mission, and once you have lost it, you may not get it back, as the special mission has been completed.
This supports the theory that there is only one Wish Stone available per Rescue Team game.
all hope is not lost i heard that you can find another at wish cave floor 50
Wish Stone: Let's Jirachi grant you a wish.
No you don't need it to recruit Jirachi
If you lose it, it'll appear in the Wish Cave's 50th Floor.
Jirachi is in here:
Wish Cave
Floor 99!
look around open feilds or around water resources
save medicham from wish cave.
the reward is the wish stone.
you cant srry.
In Pokemon: Mystery Dungeon Explorers of Time/Darkness, Moon Stones can be found rarely in Kecleon Shops for 2000 Poke.
Get A Thunder Stone! And Then Go Evolve it!
you need a pichu and the wonder mail code you can get them off Pokemon websites
Yes you can you can find stones in dungeons or get them from rescue missions.
you need a moon stone to evolve skitty into delcatty.
Buy it from a kecleon in a dungeon. The kecleon has a small chance to have a shiny stone to sell. It costs 1000 Poké.
you need a wondermail mission to get it that's the only way ;D
you need a fire stone then you go to luminous spring and evolve
find a kecleon shop in mystifying forest that's how i got mine.
I think you need a thunder stone to evolve pikachu hope this helps you
magneton will evolve into magnezone when giving the light a coronet stone, which you can get for a random mission