Those are partyhats for cats.
What? Yes, partyhats for cats.
A friend of mine specifically asked me for them. I used some cotton yarns I had lying around, with no specific pattern. I started from the rim and then went up, decreasing along till there were only a couple of stitches were left. The pompom consists of a couple of single stitches into the last stitch.
I added the long strings so my friends could were the hats as well since I knew that the cats might have served just as a shady argument to make those hats. And boy, I was so right! Another friend told me that the two girls wore the hats more often than the cats!