IMPORTANT UPDATE! This trick only works if the magnet can make contact with the pin you want to remove! Without direct contact, the magnetic pull is not strong enough! I came up with this idea recently is response to a thread asking about removing the wheels from Transformers. The usual trick is to use a soldering iron to heat the pin and then use the wheel itself to pull the pin out. Well, I've used this method successfully, AND I've had it backfire and destroy the wheel. This little trick ensures that you will not damage the wheel at all! Here's how it works. What You'll Need -Transformer with a wheel that needs removed. (This is one from my fodder bin.) -Soldering Iron. ($10.00 at Walmart.) -Very strong magnet (This one is out of an old computer hard drive I had.) How It Works 1. Heat the pin with your preheated soldering iron for about 30-40 seconds. Be careful not to touch the wheel with the soldering iron or you will melt the plastic!!! 2. Apply the magnet to the pin. You want to move quickly, yet safely to this step so that the pin doesn't cool off too much and thus require reheating. 3. Pull slowly. Go slow. If you go too fast and you'll pull the magnet off of the pin. 4. Repeat steps 1-3 if necessary until the pin and wheel pull free. That's it! Simple wheel removal without damaging the wheel in the process! I hope this helps everyone!