don't know about T&T, but my recollection is that when TNG was doing "Relics", one of they FX guys (Curry?) had recalled that years before he had worked at the same effects house (or its descendant) that had done the effect for TOS and on a shelf was a box of film labled "Star Trek Transporter Sparkle". I believe THAT was what was in the box mentioned, not the glitter itself.