The set of contacts below are from (here). The contact lens pattern immediately below resembles a goat's eye and is titled as such. The Goat Eye lens or is it Hypnotoad?!
On the left and right respectively: Red Sclera, Hemorrhage. There was actually a design with a little less blood and titled "Bloodshot". I have a hard time imaging anyone paying $300 to look like they had a horrible day at work and are sleep deprived.
On the left and right respectively: Mirrored Riddick, Cat Eye. It is unfortunate that the site selling the Mirrored Riddick lens restricted them to film producers only. They look very cool but perhaps they are restricted for safety reasons.
The next set of contacts are from (here). From left to right are designs: Patchwork, Flames, Skeletal Teeth. Anyone else think the Patchwork lens is comparable to the Google Chrome icon?
From left to right are designs: Smiley, Rave Blue, Medusa. The Rave Blue definitely holds potential for ravers out there.
Most of the lens variants displayed so far are limited to special occasions like Halloween or parties but Swarovski lens are targeted towards more frequent use. They have embedded crystals in the lens to improve looks by functioning similar to jewelry.
Using nanotechnology, engineers at the University of Washington have developed experimental contacts with circuitry and lighting. They aim to create artificial displays in the contact lens to aid the disabled, driving, or just function as a way to surf the web. Of course there may be other purposes in the future such as military uses or perhaps superhuman visuals. There was also mention of this technology functioning as virtual reality in the future for entertainment or training purposes. (Source)