[T.G]

I've been recharging the boveda packs for years using basically the same method as Darren described, put them in a tupperware with a wet sponge and seal it up for a while.

I did recently toss one of the small wet-nap ones into a container of water to see what would happen, the labels/outer "paper" fell off within 24 hours, then it eventually expanded to about the size of a golf ball.