Isn't the whole point of a role play that it's your fantasy? I don't quite see how that works with asking others for ideas? (perhaps I just don't understand, not being into them anyway)
I agree completely. With a competent role-player I always dream up something new and interesting, or more often two options so she can choose the one that she can most 'get into.'
I did many with Alexa before she retired and even got her feedback in what her favourites of mine were. As I'm not giving you.mine, I'll tell you one she did like with another punter (and she posted pictures) was Japanese silk ropes. Lots of preparation and know how needed for that one lads, and the ropes don't come cheap!
I've never bothered much with the standard secretary-schoolgirl-nurse fantasies. To me, they are simply occasional shorthand for things like "make a fucking effort and wear something I ask" or "don't talk, just get under the desk and suck my cock."