Multi-purpose colors are wonderful because they are very versatile.  The colors are available in Matte, Satin, Shimmer.  In the Shimmer category there are 4 color changing colors also. 

Some ideas that these colors can be used for is: eye shadow, eye liner, blush, bronzer, nail colors, body shimmers, contours, mixed in hair gel, shampoo or body products.  Also most can be used as lip colors. 

For another great effect, you can use them wet or dry.

Matte

Satin

Shimmer