1.Haha, what a coincidence. We used to have a class teacher who also got married on Teacher's Day. She almost broke her head in order to buy gifts. I gave her a bunch of flowers. Of course, it's not just flowers. I put a 24K gold-plated rose in the middle. This is real material. Because it's not cheap, I only bought one. It looks different when it's placed in the middle. It's super high-end. I bought a light pink one, and then matched it with some light green flowers. Although I can't name them now, it feels really great. It's only two or three hundred yuan. You can search it online.
2.This is really a headache. You can give her a bouquet of flowers and then match it with an inner-carved crystal. The patterns are all kinds of light purple, very charming. Girls will like it. And the price is not very expensive, you can get it for one hundred yuan.
3.Go to the store and buy a big cross-stitch that can be hung in the living room. Because it's too much work, it's probably not realistic to do it yourself. Buy something like "Happily Ever After".