CR tested 21 popular boxed hair dyes from Madison Reed, L'Oreal Paris, Revlon, Clairol, Nutrisse, and more. We looked for ...
I’m looking at a new 3D print accessory project, PolyDye. The concept is to transform an inexpensive desktop FFF 3D printer into one that can print in full colors. By “full”, I mean not switch colors, ...