How can I create DIY permanent jewelry that will last a long time?

To create DIY permanent jewelry that will last a long time, use high-quality materials such as sterling silver, gold-filled, or stainless steel. Make sure to properly seal any exposed metal to prevent tarnishing. Consider using epoxy resin to encase delicate items like flowers or beads for added durability. Additionally, store your jewelry in a cool, dry place when not in use to maintain its longevity.