Ways to do naturally straight hair?

I have naturally stick straight hair. I curl it sometimes, but here's the thing... I'm really trying to keep it healthy and everything, so I don't really want to do heat. I do poofs, pony tails, and buns. Sometimes fishtails. I know how to french braid, but I don't really look good in that. I like to stand out, but not tooo much. I know this doesn't leave you with very many options, but if you have any just let me know(: PS, hair doesn't scrunch.