Just fling some water in there from a wet hand.Quarter ounce or so. Then seal it up overnight. They'll be perfect the next day.
Just watch em close in case you got too much water in there. Standard cure process, open it for an hour a day for a week or two and you should be fine. I've done this before with no problems.
The apple idea will work too, but your buds will take on the flavor of apple, somewhat anyway. That might be a good thing.
Fred