How to make your own brainwave-controlled cat earsS  Remember
those hilariously bizarre Japanese cat ears you could manipulate
with your mind? If you have a 3D printer, a Mindwave headset,
some technical know-how, and a little bit of elbow grease, you
can build your own pair.  Over at Thingiverse, Joshua DiMauro
has posted a guide on how to build these ears. The project isn't
exactly for beginners, as Josh concedes — "Let's be honest, this
is a lot of work to go to in order to make some kitty ears [and]
I'm releasing it here because I'm curious what else people could
make based on it."