JLJ wrote a funny blog about spam mails a while back but I cant find it. Anyway, every day I get cheered up by the inventiveness by the mail authors in coming up with titles that clearly (well all is relative) indicate the topic without being so clear that the email is stopped by the spam filter.
My current favorites are:
'Is your love stick as hard as stone?'
'Grow a horses tail'
'Reach deep into her hole'
'Make her scream in pleassure, everynight'