Honestly I am curious about Solution-lens yellow cat eye contacts. :O
If the pupil is as small as in the photo, I'd buy them in a heart beat for my Orochimaru cosplay.
Also their assortment of purple lenses is pretty big but I am unsure which to chose from. (For my Yami Marik and Megaman Zero series cosplays)
As for the red ones, I haven't really looked. (I'm looking for a pair that could be used for Sebastian Michaelis and Alucard from Hellsing).