Wouldn't it be cool to have mood contact lenses? I'm not sure how much the eye's temperature changes, but it might be neat to try. Of course people with certain shades of hazel eyes wouldn't need these :)-- amadeus, Jul 24 2000 Mirrored contact lenses http://www.halfbake..._20contact_20lenses...and see the link from this idea. [hippo, Jul 24 2000, last modified Oct 04 2004] Implant Lenses Implant_20LensesPerhaps these could be implanted into my face? [roleohibachi, Nov 23 2005] Only if they glow red when you're really mad.-- centauri, Jul 25 2000 . For a dramatic effect, you could have the lenses cover the entire viewable portion of the eye. ****************Hey a completely new angle on sunglasses. Have Transitions (company that makes glasses that darken in sunlight) make contact lenses that do the same, then no need to get sunglasses at all. Your contacts would just darken when it got bright.-- interpreter, Jul 25 2000 Good idea... bun... but I don't know if I would ever wear them. when I'm sitting in class and the whole student body changes eye color to "bored", the instructor tends to get a little edgy. Added a link.-- roleohibachi, Nov 23 2005 random, halfbakery