"Question: whyamihere"
Lol. Sorry, that just looked funny to me on the topic list.
Anyway, I have seen some stories address things like fake nails, makeup, etc. falling off during shrinking, but it's not common. For the most part, I think things like that should be considered
Acceptable Breaks From Reality.
After all, technically, dental fillings, pacemakers, surgical plates and pins, etc. shouldn't shrink, but that would get ugly in a hurry.