I have just recorded a vblog showing you a really easy way to contour using Mac’s Pro Sculpting Cream. As I state in the video, you can use alternative products such as cream foundation which is much darker than your skin tone, or even a dark concealer. I know Sleek do samples of their cream foundation which is relatively inexpensive, but you could use a dark shade to achieve the same look.
The Sculpting Cream I use is Coffee Walnut. Apologies that the video comes to an abrupt stop but the battery on my camera ran out. I finish off the look by applying Mac Soft and Gentle to the top of my cheekbones, then dust on some Nars Orgasm on the apples of my cheeks. I hope you find the video useful.