Technically, yes. However, as long as you don't do any damage to any of the parts, how much warranty are you really going to need? CRK may charge you a reasonable fee to replace washers, screws, pivot bushings, what have you, but, I doubt they will leave you entirely to your own fate because you bedazzled your scales.
My opinion is, the quality is baked in. Use it for its intended purposes and you'll never need a warranty.