There won't be exactly the same outside. There are three ways to get the same result. One is to find gucci after sale and ask them to change it for you. The other is to buy a high imitation gucci bag like you, and then remove the button and press it on; The last way is to find someone who can repair bags and make jewelry, customize an accessory for you and install it.
For example, this one in Baidu Encyclopedia
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