I have used pure vanilla extract in the past. Its not really one of those attractants that you put out months ahead of time. Get to where ever you're going to be hunting that day and spray a little bit around your stand and on the surrounding bushes.

The first time I did this I had had 2 does come in right beneath me and they were licking the bark off of my tree as well as eating leaves off of the small trees too. Recommended for preseason only.