You can get them randomly at random places (hidden items which look like poke balls) I think theres one obtainable at the start of Mt.Coronet but you can use BPs from the battle tower to buy them at one of the stands...
you cant
heck if i know i need someone to tell me
They are found in Poke Balls that you find throught the game.
you can't find rareb candys you find rare candys and no i don't know where to find them
put in the code for 999 rare candys in you in your action replay
You can find them in various places, or at the Battle Frontier in exchange for 42 BP.
There's always the lottery and the Easter egg.
you can get 900, rare candys if you have action replay. however, the action replay won't work on the dsi
at the spooky mansion
use an action replay.
Yes you can use Pickup in Platinum. The only Pokemon that may have this ability are: Meowth, Phanpy, Aipom, Munchlax, Teddiursa, Zigzagoon, Linoon, Pachirisu and Ambipom. You can pick up as much Rare Candies as you want. Pokemon that are under lv21 have no chance of finding a Rare Candy. Higher lvl Pokemon have more chances of finding Rare Candies.
train your Pokemon hard and feed it rare candys and if you want buy a ds action replay and you will get a cheat for infinity rare candys