desert sand

Hey everyone, I am planning to do a new build for some nephrurus cinctus and I was just wondering if there are any ways to have play sand look natural because desert sand prices are getting expensive and I won't be needing much since I am creating a substrate mix. I have red cement colouring...

Title pretty much says it all. I reside in VIC just fyi. If anyone could help me out with showing me some sites or shops as to where to buy decent priced red desert sand, or even offer some alternatives, that'd be fantastic :) thanks!