hehe yup, just wait'll they get soft.
you don't want to use hot water, cuz that can cook the pinky...
If it's warm to your touch, just drop the pinky in and within about 10 minutes, it'll be fully thawed out.
Larger mice (as your corn grows) will take a bit longer to thaw out.
What I usually do is just stick 'em on a plate in the fridge the night before. That way they're thawed out but still fresh in the morning.
Then just leave 'em out to warm to room temperature, then stick 'em in warm water for about 10-15 seconds - can help trick the snake into thinking it's still alive.