Would Elon Musk or Jeff Bezos be more likely to respond favorably to a letter asking for $60,000?

Aren’t you the same user who said they need a painting of Jeff Bezos penis on the Sistine Chapel walls?

Rip the paper in half.

If you outline a crazy enough plan, Musk would be your man. 

He might be less than enthusiastic about the amount though, and ask you if you would like more.

Either one of them can use it for toilet paper.

Neither. But seem fairly greedy.

I get the vibe that you may likely hear from Elon Musk a lot sooner than Jeff Bezos.

Obviously you have the internet.  Email them both .  Maybe they will compete to see you can give you the most.

Save the piece of paper

Nope. They’re not charity cases