Epoxy resin is not only used in jewellery, but also in art, you can make different kinds of jewellery, there are many other places where epoxy resin is used. You can even try to open your own DIY resin business and it is not difficult to buy everything you need, here
https://https://artline-resin.eu/collections/jewelry-resin-for-creativity-and-pouring-jewelry you will find everything you need for manufacturing, for example, for jewellery and small casting, for resin art and much more. In fact, with your own hands you can make original gifts to your loved ones from crystal epoxy resin for jewellery and costume jewellery.