I've tried almost every flavor of buck jam / pig out and deer won't touch it where I hunt but I've seen deer lick it off of trees where its been slung out of a bottle in Miss.
I've seen deer give up on rice bran half way through the year and they won't touch it at all in the swamp.
But with the exception of the rut they will at least nibble at corn.
Acorns as mentioned before but not many stores sell acorns by the sack unfortunatly
This post was edited on 1/5 at 7:49 pm