Swarovski Innovations Spring/Summer 2018 Discover the new Shimmer Effect created to enhance the iconic AB effect that we all love! This new version offers a rainbow refraction that changes depending on the crystal movement. Swarovski Flat Backs can be applied with glue to different materials. Perfect for adding sparkle to garments, mobile phones, nails, greeting cards and any flat surface. Buy beads online with I-Beads.