Our little cat, Luna.
She has an interesting backstory: one day my wife and I were peacefully having breakfast, when somebody rang the doorbell. When I opened the door, nobody was there, but a shoe box was left on our doorstep. Inside the shoebox was the tiniest little kitten I have ever seen.
We thought she wouldn't survive but thankfully our friend's cat had kittens at the time and served as a foster mother for Luna.
It was 14 years ago. She's still as zippy and as tiny as ever (weighs only 2.5kg). And the gentlest little creature ever, never aggressive, but always ready to purr.