Giving gifts is just a way to express feelings. As long as the feelings are there, the value of the gift is not important, especially for you who grew up together, you should know each other very well, so flashy gifts are not necessary;
You can make a magazine or video for her, including her photos from childhood to adulthood, and the more memorable things you have experienced together. Marriage is the end of an era and the beginning of another. Giving such a commemorative gift will definitely move her for your intentions. Only childhood friends will have such thoughts;
Cross-stitch is also very good. It is not very valuable but it is handmade. You don’t need to say anything. Every stitch and thread reflects your deep blessings to your friends; similar to DIY oil painting, the principle is similar to cross-stitch, which also turns lines into symbols and numbers. Even people without painting skills can make it. It is quite popular now, and you can check it out online.