I can definitely clone a Victini!
I have both Pearl and Platinum, so a Giratina/Palkia/Diagla will someday join the collection once I get around to playing them (and my Pearl is used, with the DS itself, so I might have to sneak some in there if possible if they are a connected "set"). With that said, if any of them are Event ones, I'd be happy to take them, clone them, and return them; I consider this an optional exercise I can do, but I have to change systems to do it, so there would be a ten minute or so stall while I make clones.
I am planning to meet up with someone else on Friday to do some trades and cloning; I was looking for an Arceus and a Jirachi, and the plan involves trading the Arceus and me cloning, then trading it back. Since this would take place in SoulSilver, and the one between us in Black, I would basically be playing game switcheroo. I do one first, switch games between systems, do the next trade while cloning, switch again, do first tradeback while doing second cloning, trade games again, and do final tradeback. Reason for this is all my trading is on the 3DS and all my cloning on the DSi. ;) So if there are any events or anything, those would be great, and junk on my trading back is perfectly acceptable. I'd like to become an established cloner someday, so I want to build up a reputation. :)