Soon one of my good friends is getting married

I already purchased a gift for him, which was easy since I know the dude  

What's the problem is I don't really know his wife that well, I'v hang out with them a lot but I don't know her intimately to purchase a spot-on gift.

I'm not sure what the appropriate term is on english but I'm the barjaktar (guy wielding the flag on the wedding ) and I should get spot on gifts.

Ofcourse, I thought about giving money, but I already ordered something for him, money is out of question  

What would be a good gift for the bride?
Their location is Germany.

I'v thought about monthy food subscriptions or something, however, most of the boxes are expensive and some don't even deliver to Germany.
Booking a trip for them wouldn't be good since I don't know their schedule and believe the groom has to work very soon