My daughter who is now 19 is obsessed with Disney. I haven't gotten her anything Disney World in awhile but last year I got her a Mickey and Minnie Chamilia bead for her bracelet and this year I'm getting her gold Mickey Mouse earrings.
Oh, definitely. My D23 membership was a Christmas gift. I've also been given an assortment of Disney collectibles, figurines, jewelry and of course movies over the years. As for gift ideas specifically relating to Disney parks, I can't think of any that I've given or received, but I'm sure I would enjoy them. I think my partner and I are going to buy a monorail train set to circle our Christmas tree this year.