I agree with eMonk
You can just submerge the rodent directly in a bowl of hot water from tap. (Not boiling hot water)
You don't need to wrap the rodents in plastic, I just directly put it in the water.
15-20 min is good enough. Also, feel the rodent ( sqeeze it ) to make sure that its fully thawed and warm inside. BP's won't take anything that's cold.
Then dry it with paper towel.
Feed it with a feeding tonge.
Have fun!