It is not a violation of copyright if you use actual items you've paid for (like magazine or book clippings, stickers, etc)
Is it better to use original work? Absolutely, but I think of this as fan art. There isn't any licenced Jem jewelry, or 80's Barbie jewelry on the market. After my recent batch of Barbie and Jem pieces I will not be using the images anymore. I want to eventually create my own Barbie and Jem pictures to use. Thanks for your interest
Many people love Jem and 80's Barbie, and there isn't anything available other than handmade jewelry. The official images are images we all identify with, as we've watched or collected them as children. I have fun creating these pieces, and many people love them. My whole jewelry shop is not full of unaltered images, these are actually the first pieces I've put up for sale with such a thing. I totally understand your concern about the usage, and if there was jewelry on the market like this I wouldn't be making these.
Oh and check my shop sales, I'm not mass producing and selling tons of stuff like this, I actually haven't sold any of these yet. They were mostly done for fun, and I wouldn't mind if any of them didn't sell. You're totally right about principal, though. I usually get pissed when I see other unaltered images used in things. I guess I had so much fun hunting down media, making these and sharing them, that I didn't think it through. It also becomes extremely easy to not think about when you see this sort of thing being done all the time. I just know if I saw old school Jem and Barbie jewelry I'd absolutely love it, and I thought others would too. I do plan on creating my own fan arts of the characters to use. They may not be as recognizable to people, but I do prefer to make more original things. As I said, these are the only batch like this I will be making.. then onto new projects! Thanks again for your feedback