I have tried several iron rests, which improved things but did not totally resolve the problem until I bought this silicone iron rest pad.
Not only the silicone iron rest pad is heat resistant, it is non-slip. Since the iron sits on it with the business side down (not its end) it is very stable, it is pretty impossible to knock down. As an added bonus the pad is water proof, so when you use steam and iron has water in it, if a little of it leaks out it stays on the pad. I am attaching a collage of two photos. In the photos you can see the pad with my iron on it in two different orientations, so you can see how it fits.
The pad size is 14.1 x 6.2 x 1.1 inches. It weights 2.4 ounces
This iron pad is designed to resist hot temperatures for short periods of time only. The warning on the package says that it should not be used with temperatures of over 500 F (260 C) even for short period of times. It also warns not to use it if the pad gets cuts or pierced. The pad itself does get heated up with a hot iron on it, so let it cool off before handling. One of the pad ends has a funnel that is normally collapsed and flat. It can be used to make it easier to add water to the iron without spills. I have not found much use for this feature although the funnel does pop out nicely and does fit into the opening. This product is made in China.
Overall, I am very pleased - a very inexpensive solution to a really annoying problem.
You can find it on Amazon by following this link.
AshopZones review ★★★★★