I went through an extreme circle lens spree last year and tried out a bunch. My eyes are naturally light, but here's a bunch of pics anyways!
First my natural eyes:
Neo Sunflower in Honey:
Hypersize in Grey
Hypersize in Black
Geo Tri-Color in Violet
G&G BT02 in Violet:
EOS Adult in Violet:
Dueba EX in Violet:
Dolly Eye in Violet:
Dolly Eye in Green:
Dolly Eye in Blue:
Dizon Eyes in Brown:
Neo Celeb in Violet:
Neo Celeb in Blue:
Barbie in Violet:
Excuse the poor makeup, they were all taken quickly right after I got them, and really just to show the color of the contacts on my eyes.
As you can see, a lot of them are really bright and noticeable. I also have a thing for violet eyes, so that's why you see that color the most.
My favorite pair (and the only one I still have) are my EOS Adult Violets. I just really like the light pruple color of them.
Just be careful when you try them and make sure you're being extra clean and taking care of them, because if you don't you could run into serious problems. I had worn plain regular contacts prior to this, so I already knew how to care for them. Unlike regular contact lenses, however, they are not meant to be worn all day. I usually can't wear mine for more than 5 hours or so. My eyes just get so tired with them in.
I'm actually going for an eye exam on Thursday, and I might be getting contacts again. I might try some US brand colored prescription ones. If I do, I'll be sure to post them