I actually read an article in snowboarder magazine about using a heated up frying pan, as long as its smooth on the bottom.
I've used a clothes iron before. Try to get one without (or with less) holes. The travel one would be a good idea. Most important thing: KEEP IT MOVING. Just like with clothes, keeping it on the same spot too long is what can cause damage. (Even so, you shouldn't run into any problems)