after reading this post the other day i went out to a local O'reilys store (similar to autozone) and looked around. they had one can left on clearance for $3.50. i bought it a put racing stripes on my hood! :)
some recomendations i have is to spray on a test subject first so you know how the "paint" behaves. after finishing peel the masking off BEFORE it gets completely dry or it will pull off with the tape. and i would probably get 2 cans.
what i did was spray on about 3 coats, it covered completely and i used the whole can that i had. it turned out a little blotchy but looks great from a distance. from my experience i would say this is more of an experiemental procedure than it is permanate. now i know what the stripes will look like and i will either be adding more plasti dip in the future on going with a vinyl stripe for a glossier smoother look. i haven't decided which yet though. definately recomended though! it's like removable paint!