I actually just did my first label transfer using a hair dryer. I bought a bunch of boxed NES games from an older fella who posted them on craigslist. The copy of Kiwi Kraze had unfortunately be previously owned by a rental store that actually carved their name into the NES cart. Luckily, the lable was in perfect condition, so I simply heated it up, removed it, and slapped it on another one. I couldn't believe how incredibly well it worked.