
They are not reusable if epoxy resin is mixed in. They just break when you try to remove the epoxy residue. I've used others like High Teck which are much more flexible and you can easily break up the dried epoxy to reuse the mug. No problem if you don't care about the environment.

Complete Acrylic Paint Set β 24Π₯ Rich Pigment Colors β 12X Art Brushes With Bonus Paint Art Knife & Sponge β For Painting Canvas, Clay, Ceramic & Crafts, Non-Toxic & Quick Dry β For Kids & Adults
37 Review

Gislaved Nord Frost 200 205/55 R16 94T winter
159 Review

ARTEZA Iridescent Acrylic Paint, Set Of 10 Dreamer Colors, 2 Oz/60Ml Bottles, High Viscosity Shimmer Paint, Water-Based, Blendable Paints, Art Supplies For Canvas, Wood, Rocks, Fabrics
44 Review

Create Stunning Metallic Masterpieces With ARTEZA'S Set Of 36 Acrylic Paints - Non Toxic, Non Fading, Rich Pigments Perfect For Hobby And Professional Artists!
45 Review

Artlicious Colored Pencils: A Colorful Set Of 50 Pencils For Kids And Adults - Perfect For Art Projects And Professional Use
36 Review

80 Color Art Marker Set W/ Upgraded Base & Carrying Case - Perfect For Kids & Adults!
30 Review

40 Colors Skin Tone Dual Tip Alcohol Based Art Markers Artist Permanent Sketch Manga Pens Upgraded Case Portrait Illustration Drawing Coloring
40 Review

Create Colorful Chalk Art With Cestari Kitchen'S Green Liquid Chalk Marker With 2Mm Fine Tip β Perfect For Writing And Drawing On Chalkboards And Labels!
41 Review