There is one wicked metal alloy than can be deformed or bent in any way possible way but has the ability to return to its original form once the load is removed.
Nickel Titanium Naval Ordnance Laboratory or more commonly known as Nitinol is superelastic, a term used for metals that has the ability to return to their original form. Below its transformation temperature, Nitinol retains its shape but when heated above its transformation temperature, it can be deformed then goes back to its original shape when cooled, hence tagged as smart alloy.
Most common application of this alloy is in Medicine but it would be nice to use this kind of alloy in cars. Paintless dent repair will now have a new meaning to it.