This article provides a step-by-step guide on making a resin galaxy necklace inspired by the ocean. It also includes seven other cheap and easy DIY jewelry ideas. The instructions for making the resin galaxy necklace involve mixing and pouring resin into a pendant mold, adding resin colors and glitter to create a galaxy effect, and attaching a chain. The article also suggests using materials like beads, wire, and feathers to create other unique jewelry pieces.