I’ve also made some swift earrings utilizing the exact same notion. I sealed the stars with Mod Podge (an acrylic glaze/sealer) to protect and reinforce them and make them extra water-resistant, then I threaded them with a few tiny sead beads on to earring hooks: oral history published by THR, https://duckystar53186.suomiblog.com/helping-the-others-realize-the-advantages-of-ducky-star-45512133