I did that a few times and pure Vanilla works pretty good. Was hunting the edge of a corn field and put some on the dried ears and deer would stop on them every time. But two problems with it. Pure vanilla is not cheap, and when you take the wifes and she has cooking to do and cant find it, messes up her cooking and then a week later finds it in your pack you are in a world of trouble! LOL!! But like Tom said, they get used to anything after time.