Paragraph 1: Say what you are thanking the person for and how you found it. 

To the person who found thank you! I found it mynintendo switch

Paragraph 2: Say what you were doing when you lost the item. 

I was when I left to the bathroom in my house.

Paragraph 3: Say why the item is important. Give some personal info or opinions. 

It's very special to me because thuiscost is300$ I'm mad about is one of my favourite object.

Tanks again for everything!