Use a paring knife to cut a shallow fingernail in one end of each frank. Don't cut too deep since the franks distort when they cook. Make 3 shallow cuts about 1/3 of the way down the franks, one cut under the other for the knuckle. About 2/3 the way down, repeat the 3 scores for another knuckle so you have a fingernail and two knuckles. Place the franks in an electric skillet or any pan with just enough water to steam them. Throw in any scraps for added effect. Cook the franks until they plump and look like giant fingers.