Thought of this yesterday and sent it out to around 10 girls (maybe a little less). I used it primarily on girls who are a bit more "Girly".
"Let's test your silly side
it's 2am, you find a unicycle in the street, what do you do?!!!"
So yeah I've sent it to 10 or less girls and had 2 responses thus far.
Girl 1: lol i have no idea?? u will have to tell me haha xx
Girl 2: Whats a unicycle lol.. Whatever it is I sure me and friends would play with it at 2am
Give it a go chaps, let me know how you get on. I'll keep testing in the meantime.