Necomimi Brainwave Cat Ears
Don’t get confused by the look, this is a real high tech toy. The ears are connected to a head mount, that can scan your brain’s frequency and move the ears accordingly. In highly relaxed state, like sleeping, the year will flip down but if you get excited, the ears will perk up and wiggle. Who would buy and use such thing, you may ask. Well, there is a subculture called Furry Fandom, where adults dress up in furry animal costumes.