I'd say to plan a day for her as your gift. She should be ready at 5pm on a certain day. Tell her to pack a nice dinner outfit, and a casual outfit, go have her hair done, have a manicure if she's into that kind of thing.
Take her to a nice hotel to check in, then to someplace nice for dinner, an evening activity that she might like - movie, play, concert, boat ride, whatever. Then back to the hotel for the night. Have some candles to light. And chocolate to put on the pillow. If you're wine drinkers, have a bottle or two of wine ready. If she'd be receptive to it, have a new nightie ready. Nothing sexy, just pretty. The next morning go to a nice brunch someplace.
Spend the rest of the day going around to your very own shop hop that you've planned. Plan a route, and take her to the quilt and/or fabric shops in the area...let her browse to her heart's content, maybe buy a few things, some fabric of choice, a big item like the Accuquilt Go! and a die or two. Late lunch, and then home to enjoy all of her purchases.
The best gift here is the gift of your time....and thoughtfulness that you put into figuring out something that would please her.