Wow, thank you for replying! I am going to list the sets on eBay as a huge lot. Transactions will also be easier to complete there, I think. I was trying to upload some pics on here but I couldn't quite figure out how to do that. Haha, I'm derping out but I'll link the pics here from eBay since I can't seem to upload. About the different colored pieces - I think LEGO just reused pieces from previous sets when they send me the sets. I could be wrong but I'm pretty sure they weren't sending me prototype sets or anything like that. I only noticed them when I saw the pics on the shelves of the figures. It's been ages and I couldn't tell exactly which pieces they were. I'm hoping you can pick them out from the pics I've taken of the sets I have. To be honest, I didn't interact that much with them either, I used the sets to draw and packed them away when the assignment was completed. I think the sets would be better used with fans than in my basement.