Yellow Layer: Combine 3 oz. lemon Jell-O mix, 1 cup boiling water, and 1 cup vodka. Pour into shot glasses and refrigerate until set.
Orange Layer: Combine 3 oz. orange Jell-O mix, 1 cup boiling water, and 1 cup vodka. Pour over the yellow layer and refrigerate until set.
White Layer: Combine 1 cup boiling water, 2 packages gelatin, ½ cup cold water, and ½ cup vodka. Pour over the orange layer and refrigerate until set.
Garnish with candy corn.
