Originally Posted by Kempis Curious
I'm starting to think (based on kiyone's response) that Chiriri's hat is a toned-down version of the jester's cap. Ayu's might be even more simplified, though I remember she had to arrange it in order to get the cat-ear look.
kj1980 has seen this things in RL?
walk around in Shibuya in Tokyo, and you see some girls wearing these hats.
But then you also get to see a lot of them at Ariake Big Sight on a certain date in the summer and winter...but that's out of the question ^^;