Eye Kandy had a booth at a beauty show here in Las Vegas earlier this year. All of the girls that were working the booth had the glitters on as liners, they were so cute. ;]
I picked up about 6 of their glitters and the Liquid Sugar (the medium you use to make the glitter into a liner). I think the Liquid Sugar is great, I like using it with my MAC Reflects too.
I think these are good for making your own glitter liner, but I think I prefer MAC Reflects for putting on top of eyeshadow because the glitter is a lot finer.
They do have some unique shades of glitter though! I think the favorites of the ones I have are Black Bart, Winter Burst, and Chocolate Chip.
I haven't had any trouble with these on my eye area. I hope this helps! ;]