Here's some of my favorites:
1 - Schoolgirl
2 - Tough but fair lady professor
3 - Good cop
4 - Bad cop
5 - French maid
6 - Slave master
7 - Vampire (thirsty for something other than blood
)
8 - Porn Star (this one's good, because the costume is free and easy to make)
9 - Playboy Bunny
10 - Naughty Nurse
11 - Cheerleader
I'll think of more later.
H-D