There are lots of options - I'm not quite sure if they all transfer over to Europe but I'll give it a try.
Lush has these really cute sets that they are offering for Christmas.
You could make like a spa kit? Include some lotions, nail polish, and some slippers.
There are lots of books out now, you could get a fun memoir that almost everyone will like. A couple of good ones are Mindy Kaling's, Tina Fey's, and Amy Poehler's
Another really fun book is Humans of New York which is on sale right now.
There are lots of options - I'm not quite sure if they all transfer over to Europe but I'll give it a try.
Hope this helps!
Make it something related to what she likes related to, but outside of interior design. First thing that comes to mind would be travel and fashion:
Worlds Greatest Trips
Humans of New York
Paris in Color