These hilarious mini-whiskey bottle salt and pepper shakers have an interesting back story. It looks like they were originally part of an entire line of spoof, novelty "whiskey" bottles produced by Cincinnati-base Par Beverages in the 1950's through 1970's and sold at Stuckey's Candy Stores. You can read more about it here:
Bottle #74: Old Croak
My little bottle has a sticker on the bottom from the original collector indicating it was acquired by them in 1981.