Yes, they are cool when you wear them. The colored contact lenses mainly used as accessories which will make your appearance look more beautiful. You could go to the amazon to have a search. That is the good place to buy the contact lenses because the variety there is many and quality is good.
We just passes Halloween, and i see there are so many people online ask for where to buy glow contact lenses and theatrical contact lenses. If you have no idea, you can just search the contact lenses through internet. There are some online shop provide such "unique" contact lenses. Check the link: https://www.youknowit.com/online-shop/rave-glow-contact-lenses.cfm