Well mostly free. Thanks to Sisi Sparkles for posting about this!
Everyday Minerals used to always offer this option for a free kit of samples to help figure out the color you would need to order but a couple years ago (I remembering ordering a similar kit in college), they discontinued this deal (and I presume lost a few customers in the process). Well, it's back! And you only need to pay shipping, plus 1 cent. I paid $3.09 for my sample colors.
The options are: Fair, Ivory, Light, Medium, Tan, Mocha, Olive