I just tested the Pluck + Jaboca Berry with the help of the almighty AR. (I had hacked 999x of all the berries and hacked Trick onto a Staraptor.)
I got a message saying that Staraptor stole and ate (used? My DS screen is broken so I don't know the exact text) the wild Onix's Jaboca Berry. There was no effect.
As for Micle Berry, it doesn't seem to cause an accuracy stage boost like Acupressure (sometimes) does; the message given was "GIRATINA boosted the accuracy of its next move using its Micle Berry!" I exhausted Recycle's 10 PP and the Micle Berry never failed to boost. Therefore, Micle Berry does not cause a +1 or +2 boost to accuracy. It merely boosts the accuracy of the user's move once and only once. This requires that a statistical test be run if we want to figure out the actual accuracy boost.
The item is lost.
If a Pokémon with Sticky Hold Flings an item, do they lose it, or does it yo-yo back to them?
Shame, too: it would have been a nice gimmick for Muk.