That is an interesting idea... You could give it a try, it might work. I wouldn't buy one just for that though. I know the bottle warmer we had for my son (it was about 9 years ago, so it could be a lot different) got pretty warm pretty quick. It actually got really hot. I found early on that with thawing frozen rodents, if you heat them up too much too fast, they will rupture and become quite messy on you. Like I said, it could work, but just keep an eye on it... and I'd definitely keep the rodent in a bag just in case lol.