Or you could try a freshly killed one that is still warm, just wiggle it a little(using tongs).
Other methods Ive heard of are
placing the pinkie and the hatchling inside a brown paper bag within a cricket box, over night.
placing the thawed pinkie in warm water just prior to feeding
rub the thawed one with a frog/lizard/chicken soup
Im just wondering how long you have had youre snake. Is it youre first one? Is it possible there is another reason it has gone off its food, such as its due to shed, has had a change of enviroment, is it in good health? There are so many reasons snakes can stop eating. How often does it feed? Has its feeding regime changed? Could it be stressed in any way?Let us know more about the situation so we casn be in a better position to advise you.
Angi