I considered putting these in Spheres but went with something entirely different. I have cloned out a couple of price tags which I couldn't have done and they were a bit unsightly. (Those larger balls are $29 each would you believe?)
The texture is entirely legal - some sort of reflection on the glass, but I bet it would have aroused suspicion.
I've done Topaz Adjust either vibrance or spicify (legal?) and added a FilterForge film frame which adds a slight vignette, so that wouldn't have been.