The price of a gift is not important, but your intention. What kind of gift can you buy with 200 yuan? I suggest you choose some novel gifts with more personality. Such gifts are not expensive and very special. You can take a look at the following suggestions.
You can give a personalized luminous pillow, which can be used as a pillow and can also illuminate at night. It will light up when you hug it. Girls like it. It is not expensive. Two hundred yuan is definitely enough.
According to the real-life photo of your good friend, go to a special gift shop, make a real-life Q version doll and give it to her. The shape should be funny.
Give a personalized jewelry. Like engraved rings, personalized earrings, name necklaces and so on. You don't have to choose expensive ones, just choose one that costs more than 100 yuan.