Thanks cupcakemaker! Yeah, I've seen her work, but her chevrons are more uniform and same in size. She does use a paper template to hand cut them, like Kara suggested.
Yeah scrumdiddlycakes, that's what I'm concerned about. - stretching and ruining them. I haven't tried the wax paper technique before, just not sure if it'll work with lining up the chevron stripes straight on the cake... :-/