When I use Terminal, I’ve noticed that the OS creates this Icon^M for folders that I created. It’s quite irritating (I’m not sure what it’s for), and Eclipse was choking on it last semester. I never figured out why until today. So apparently it is a custom icon (but I didn’t set one!), so I can delete ’em via Terminal; e.g.
woteba:~ kzhiwei$ find . -name Icon*
woteba:~ kzhiwei$ find . -name Icon* | xargs rm -rf