on one university in "Brno" (im applying for the scool and was on excursion there) they have this 'glasses thingy'.
you put it on your eyes, get those gloves and use your hands to draw stuff in the space in front of you. like, when you moved left hand, the cursor moved. when right hand, you rotated the space. when you put thumb and middle finger together it begins a line and as you move your hand it draws it; when thumb and pointer, it opened tool panels, etc. etc.
but those were polarised glasses, not just red-green color filter..so you d also need to get some 'hardware stuff'. but man.. it was so cool
