Buy her flowers, and pay the florist to deliver them to the Yichud room. That way you can be done with it quickly, so there’s one less thing to think about.
I disagree with you here.
When speaking to chossonim and kallos, I often tell them not to let the wedding drive them crazy. While it is an important day, it is only one day — one day out of the many that they will spend together for the rest of their lives. As important as it is, it’s still only one day — and it’s not worth spoiling the ones that follow just for that one day.
However, when it comes to a gift for the yichud room, that’s something that she’s going to remember the rest of her life. As a result, you want that memory to be a good one for her in the years to come. So don’t just pick flowers because it’s expedient and “one less thing to think about.” Pick something that’s meaningful. Put more effort into her gift than you do into your suit, the choice of music or who gets which kibbud. Your suit will eventually be worn out, the music will be a passing fad and who got which kibbud will be unimportant in your future life.
If she adores flowers, then by all means, get them. But don’t do it just because it’s easy. Go for meaningful over easy. You’ll win every time.
The Wolf