While I agree with Elnoa about all women being different, I think that as long as you have open communication in your relationship that new toys will not only be welcome, but fun and exciting too.
If you keep lines of communication open, hopefully you and your partner are talking about what you like/dislike, what you have always fantasized about doing, etc. If this scenario fits you and your partner, I don't think you can go wrong with a new toy. A new toy tells your partner you trust them, you want them to be happy, you enjoy being intimate with them, and you feel close enough to them to give it to them.
If you're wanting to get a woman a gift which is inexpensive, simple, and yet WOWs every time, check out link
. It's good for beginners and experts, and it's fun for solo time and couple time.
Good luck! I love getting new toys!
P.S. My boyfriend says, "All girls like presents. Start small and work your way up, but I say GO FOR IT!"