Quote Originally Posted by Ascinder View Post
Use a hairdryer, or if you have one, a heatgun or plastic welder. The last two just have more direct heat. You need to do it slowly and take your time or it'll get too hot and get nasty. I copied the following from an auto repair blog:
I agree. Some hair dryers don't get hot enough. Don't give up if you try the hair dryer idea first and it doesn't work. I've reshaped warped urethane several times. And, I used a hair dryer -- but it's an older one that can melt your face off!