i think the handmade item is cool, but it smacks a bit of recasting, http://theclubhouse1.net/museum/RECAST.htm
Back in my scale modeling/garage kit days, I'd often read and discuss intellectual property and copying of other people's work. it was eye opening, it got me to stop taking the easy cheap route of downloading music and movies, and make more effort to reward the actual producers of the material I enjoyed. it's complicated, too. I mean every time I whistle the tune of a popular song, should I pay the writer of that song a penny? a ridiculous example, but when you talk about intellectual property and how thought is translated into the tangible experience you have to define such boundaries.
You understand more when you move from being a pure consumer to being a producer. I'm pretty sure the Etsy maker isn't paying any license fees to use Star Wars and LEGO IP. Does it really matter? He's not damaging or diluting the value of either.
But back on topic, should you collect it or not? in the end you have to value the item for you purposes. if you're looking to sell your collection someday, then this item will probably be nigh worthless, but to you, if you can never get another like it, it's priceless. thanks for the link, it's nice to see interesting trinkets being made from some of my favorite stuff. and sorry about the meandering post, I'm not quite lucid.