How to Make an Iridescent Resin Tumbler! Make a resin tumbler that rivals the shimmer of a mermaid tail! This iridescent resin tumbler diy is easy to make and has texture, shine and smoothness. Learn how to make an iridescent resin tumbler in this tutorial. Resin crafts are so much fun and if you haven't tried a tumbler yet, consider this your sign! This shiny tumbler is perfect for staying hydrated, mixed drinks or as the perfect handmade gift. Make the coolest iridescent resin tumbler in just a few minutes, plus drying/curing time! The crinkled iridescent finish is super smooth to the touch, but reflects all kind of shimmery, rainbow light! This tumbler posted on Resin Crafts Blog first! Making tumblers is so much fun! They make the perfect gift filled with goodies, gift cards and more. They are easy to customize. Adding glitter, vinyl or any other details to make them extra special is a breeze too. Finished off with a coating in Envirotex Lite High Gloss Finish gives them a su