Handmade Star Earrings

GUC I picked these up from a vendor at a music festival, they're cute but just not the right fit for my ears. I've only worn them once or twice, they've been sanitized. I'm not 100% on the gauge, either 16 & 18. I'm also not sure what material they're made from, it's either acrylic/resin or wood, including the posts.