Don't get snippy. lol
I'm trying to help you figure this out and all I asked for is as much detail as possible. I can't read your mind on what you're seeing and if I can't get a good idea from your first pic, don't chew my head off. You're there, I'm here.
Anyway, if these are coming out of your ports and such, and it's not something that's getting lodged in the ports due to the way you're carrying it in a dirty bag or something, then it has to be some kind of adhesive that's dried up and is possibly coming out because it's dislodging itself from the parts it was on due to the heat within the system. If that's the case, I can't answer if this will eventually cause any issues for your laptop, all I can suggest at this point is if it's something that happens regularly and a lot, take all those non-balls (that's right, they're not perfect balls, lol) in a small bag and the laptop with you to an Apple Store and tell them what you're experiencing.
This issue appears to be a minor one since only a few of you have it, but it doesn't mean it's not a problem, just that Apple hasn't see a large report of it.