Reuse: 1. If you really don't want it, you can wash it carefully with alcohol (don't use 84 water), dry it in the shade, crush the moth-proof mothballs sold in the supermarket, blow them up (you can continue to use the fallen things, don't get them in your nose, hehe), and then you can make a unique photo frame and hang it at home!
2. After drying in the shade, spray diluted varnish to decorate the whole wall of the study, which is super cool. Hmm. How interesting