What 3 items (unique to yourself) would you take to a desert island?

A good old fashioned hypothetical question folks!

Perhaps a question you’ve been asked before, but please, hear me out.

What is it that you would need to exist with some okay so you’re on a desert island so it’s not much comfort? The things that make you just a little crazy when you have no access to them? Let’s assume that by some chance you have the practical basic human needs of water and food, I mean those unusual items, things other people may not even know are important to you in whatever sense.

My personal items would be;

Tweezers I am certainly not getting rescued with a monobrow, and I don’t care how superficial that makes me seem
A mirror simply because aforementioned tweezers would be useless otherwise
And a large blank book to maintain some form of sanity/document my demise to insanity/write about what I did with my tweezers that day
A pen so that is four, but 3 items was only meant to be a rough guideline

I ask this because I find it an interesting thing to know about myself and others, I’m sure the rest of you will come up with much more thoughtful answers ^^