A Korean company makes these GEO Lens contact lenses that are larger than normal ones, and coloured too. They make the iris and the pupil of your eye look HUGE.

The lenses come in several different styles and colours. There are even ones with wild patterns and bright colours that you'd wear to scare someone to death, or if you want an exorcist to stab your eyes out.

[Thy-fashionsite via Current]