I remember making things like these from Fimo about 30 years ago! icicle beads in swirls of ombre teals and sand by A Polymer Penchant on Etsy - absolutely love the colors with the deep copper flecked through the dark turquoise
Presse papier marbré au vernis à ongle - Marbled Paperweight DIY. These pretty rainbow rocks are perfect for brightening up your desk! With just some nail polish and water, you can transform an ordinary rock into your own marbled paperweight.