Such black plastic sunglasses with neon sides are so cool which can be special at the colorful neon sides. You can search it online and find the result. Usually the online shop may offer you many kinds of it. And the price in the online store is relatively cheap which may save you a lot of money.
If you really want to find plastic black sunglasses with neon sides but can't find it in eyeglasses shop, you can search h it online. You know, we can buy almost everything online. And i just search it in google and find a sites which provide plastic black sunglasses with neon sides varying in different styles. Here is the sites: https://www.shopzilla.com/sunglasses/sunglasses+neon+sides/10070000/products