Well, it's the resin that gives color changing glass all of its trippy colors. My CCG spoon is Color changing, and I only cleaned out the actual bowl part and leave the rest as-is so it looks cool.

And yes, you can smoke resin, and yes, it gets you high as fuck. I would suggest resin-hitting it instead of scraping it out (resin-hitting is where you hold the lighter to it while inhaling, exhale, repeat. It's sort of like smoking a tobacco pipe, except that you get real high).

As for cleaning methods/supplies, pipe cleaners are a must, Formula 420 (you can buy it in most head shops), Rubbing Alcohol, warm water, soap, and nail-polish remover all work splendidly.