POSSIBLE NEW RESIN PRINTING TECHNIQUE... So its simple, print something with a hollowed out object in the center, then inject a different color resin inside to make THIS (Details in comments) :
Marine White Resin Pigment Paste Opaque Epoxy Resin - Temu
Coloring Plastic Resins Methods & Applications | New Berlin Plastics
Epoxy resin different blue color in cup for casting stabilizing wood, abstract art. Process of making accessory from resin.Mixing colorful of resin Stock Photo - Alamy
How to Color Resin - Resin Crafts Blog
How to Color Resin - Resin Crafts Blog
Multi Color Crystal Glass Irregular Crushed Stone Resin - Temu
How Much Pigment Should I Add to My Epoxy? — EcoPoxy USA Inc.
American Crafts Color Pour Resin Dyes .3oz 4/Pkg-Translucent - Warm, 4/Pkg - Fry's Food Stores
Amazon.com: 24 Color Epoxy UV Resin Pigment - Crystal Transparent Epoxy Resin Dye for UV Resin Coloring, DIY Resin Art Jewelry Making - Concentrated UV Resin Colorant for Paint, Tumbler, Craft -
Color Pigments Different Colors 20 Gr. for Coloring Soap Concrete Raysin Jesmonite Epoxy Resin Wax Resin Acrylic Oil Paint Wood Color - Etsy
Colour Resin With Resin Pigments from Just Resin
PDF) Comparison of color stability of a composite resin in different color media
Set of 10 Opaque Colors for Epoxy Resin | Shop Resin Obsession | Resin setting, Color epoxy, Colored epoxy resin
Cracking the Code on How to Mix Colors - Resin Obsession