How to design squeak and creak sounds of metal objects?

Question

Are there valid guidelines to design squeak and creak sounds produced by metal objects?

Here are some examples:
Example 1
Example 2
Example 3

Answer 1

Sound Design is a creative pursuit. Consequently the way to progress in Sound Design is to learn the common techniques involved, such as:

• Sound Recording
• Editing
• Layering
• Pitch and Tone manipulation
• Audio Processing
• Mixing
• etc.

Once you are familiar with these techniques, begin to experiment with particular sounds and see what you come up with.

There are no other guidelines than this.

Answer 2

A violin bow on a cymbal can make some cool squeaky/creaky sounds.

Using a piezo disc taped to the cymbal as a transducer can help make it more metallic sounding than using a microphone, but either way is fun.

If you don't care about scratching the cymbal you can also experiment with scraping metal objects against it. Hardened metal (like a good screwdriver tip) can be nice and creaky.

I'm sure there are other ways, too..