Plunger

Deodorant

For the record, many Korean girls do wear deodorant, especially in the summer. And many do not. The "sample size of 4" thing was my jest on my brash generalization, since in social psychology, my focal area, four data points mean nothing. However, it seems that was too much of an insider's joke. My apologies to anyone who felt jittery due that issue.

Korean version: