Maybe there are many people who like hello kitty, so the manufacturer produced this kind of colored contact lenses. Some lenses are designed like the head of hello kitty, while some are designed with hello kitty as patterns around in various colors. As people pursuing beauty, the technologies of colored contact lenses come into a boom. Nowadays, you can find contact lenses with a large range of colors and different patterns to cater for different tastes of clients. At first, I can't imagine there are any hello kitty contact lenses, but just google, you can see many different designs, which are very cute and lovely. There are even patterns like a spider web or like the eyes of cats. As to shop these contact lenses online, I really have many good website to recommend to you, because I like shopping contact lenses online so much! Check with the following linkage as attached. They are very good, with cheap prices and almost all kinds of eyewear products.
www.ebay.com; www.amazon.com
Although it is safe to wear the colored contact lenses, you still should follow the instruction of wearing guide. Don't wear it more than 6-8 hours per day and wash it every time with care solution before and after use with thoroughly cleaned hands.