This, This One
How do you make a mnemonic for the word this? You don’t. But, we can try. You climb many hills. On top of one of the hills is a little drop of water. You pick it up and say “THIS… THIS IS WHAT I WAS LOOKING FOR!”
As you look at the drop of water, you note that you found the right thing. Written on it is the word “this."
し
これ, の
None
You collect(これ) this very carefully. You’re going to add this to your drop collection.
You’re always collecting drops of water in the hills. It’s your hobby, in fact. But this one is the first one you’ve ever collected with “this” written on it. What a great addition to your drop collection.