what metals produce what colored sparks

im lookin for somethin a little differnt and want to find a metal that sparks an intense red color, and i know people who want blue and green. are there any metals that produce sparks these colors, or does anyone make special drag blocks that do. if anyone knows please post up what it is and where i can get it

red sparks?

I just replate my frame with 3/16" flat steel and its a redish type color

here ya are man

kinda helps, it says copper is green but if i remember correctly copper is a soft metal and i would think it wouldnt spark, just get chewed up