How to reuse or recycle used up Nail polish bottles?

i have hundreds of old bottles that I kept in case i can make something out of it by recycling them somewhere or reusing it or selling them. I have heard you can use them as sun shade things. How do I do that? Also artists use them. I can't find any company that actually recycles nail polish bottles! Is... show more i have hundreds of old bottles that I kept in case i can make something out of it by recycling them somewhere or reusing it or selling them.
I have heard you can use them as sun shade things. How do I do that? Also artists use them. I can't find any company that actually recycles nail polish bottles! Is their any chance people will buy it from ebay and make use out of it?
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