I also appreciate the thoughtfulness of this pre-emptive warning.
(No lie - first thing my friend said: "OMG Froggie Body Sponge!")
Now, I don't necessarily want to own these, but I do want to play with them - so, so bad. Much the same way I want make friends with someone who owns a Mind Flex.
Anyway, these mind-controlled Cat Ears - called "Necomimi" - are made by a company called Nerowear (visit their site - in Japanese - over meah.) This is what they say about themselves according to their site as translated by Google
"Neurowear" is the name of our project to develop fashion items and gadgets
using brain waves and other biosensor with "Augumented Human Body" as the concept.
Other than the first project "necomimi", we are planning to development other various items.
Other various items, you say? What might those be, Neurowear? The obvious next step are tails - you'll make Cosplay and Renn Fair enthusiasts very happy and, lets be honest, Furries will rejoice. . . if they're not already. But where do you go after that? I say you update the grabber, Doc Ock Style.
Come on! Talk about an awesome way to change a lighbulb.