You put any evolution of an evee with another evolution of an evee in the Day Care Center. Wait a while and you'll find an egg when you talk to the day care man. If you don't know where to get 2 evee's get one in the trophy garden and 1 from Bebe. (Or 2 in the trophy garden). Then evolve them with elemental stones and breed them.
To make any egg go to the Pokemon daycare and put in a ditto and the evee. There a more complex way to do it though....
I think Evee but I am not sure, make sure they are different genders though...
you can use a ditto the egg takes a while to hach but u get and evee
Only the togepi egg has 50% of being shiny
Get an egg from someone in one of the cities
yes
After evolving your evee breed it with a ditto hatch the egg to receive another evee.
no you can't find a torchic egg in Pokemon platinum
In the Hearthome City Bebe will give you an egg and the egg will hatch into an evee!
to get another evee in platinum trade a ditto from another game and then keep your first evee ,jolteon,flareon,or vaporion with the ditto in the day care centre .come back after some time and the husband of the day care woman will give you an egg which will hatch into another evee.
To my knowledge (not there yet) I assume eevee is male and evee needs to female to mate with ditto (as all pokemon)
go to the Pokemon center and deposit 1 or more Pokemon then Bebe you give you the egg