Ooohh Trish - didn't think of the newspaper. Too late now though It's tomorrow.
I have priced everything and have a blackboard with prices on it also. I have heaps of change (is about $200 in low notes and change ok or should i get more?)
Don't worry if you didn't put it in the paper, just make sure you have lots of signs out on the street and nearby streets, you'll get people's attention that way . A $200 float sounds perfect.

I hope it goes well for you