Place a cloth rag into the zip-lock freezer bag.
Pour 1 to 2 oz. of anise oil into the zip-lock bag and add several drops of pure vanilla extract.

Press the air out of the zip-lock bag and seal.

Take the anise rag to the area being hunted, place it on the ground and slightly cover the mixture with leaves or other debris.

Another option is to remove the anise rag from zip-lock bag prior to entering hunting area and wipe down hunting boots and gear with the anise rag.
This will serve to cover your scent so the deer will not be frightened away.
Tie the string onto one corner of the anise rag if you want to hang it on a tree limb near the area being hunted. The wind will carry the scent and attract deer.

You can get anise oil at drug stores.
I haven't tried this, I just found out about it.

Good Luck.