I think it varies, I've read through trip reports where it's been a crystal plate with tinkerbell etched on it, to a gift basket, and I can't remember some of the other things.
we had our intimate wedding way back in '94, but they gave us 2 glass champagne flutes and a glass picture frame w/ minnie & mickey etched in it... we could take them to a place at dtd and have our names and wed. date etched too. cool