After seeing many posts online about dry ice removing car dents, we put it to the test. It worked pretty well. The heat versus cold forces the panel of the car to constrict and suck out the dent. This is great for avoiding ridiculous costs of auto paint and auto body repair companies. DIY dent repair is as cheap as buying some dry ice. You can also look into using canned air (Dust Off) as it has a similar effect.