I've used doe urine, dominate buck urine and vanilla with success.
Doe urine was put on the ground for the rut in 2012. I made a mock scrape with the buck urine last year and this year the vanilla was sprinkled all around the feeder on the corn. Separate occasions and shot a deer each time. Now, how much of that was attributed to the scent I don't know but they seemed interested.
There is a big thread about vanilla on here if you search. After I read it I had to try it because it's so cheap (85 cents per bottle at the grocery store).
Good luck with your hunt.