How much do clip in hair extentions cost?

i dont want human hair extentions, you know the cheetah colored, and rainbow colored, or red, blue, solid colored ones they have now but with clips that cost around 10 bucks??? i have dark brown hair and i want to buy myself maybe a blonde colored extention for each side of my hair, but i dont want any extentions in the back of my hair, just the front area, would that look good???