Hi.

I have a shop with some variable products, one example:

I have this cup with two variations. 

Cup A $150 White

Cup B $250 Black (is magic)

Check the video to understand the problem

https://db.tt/5aQc8tD98j

How can i do it?

it seems to me the best way to do this would be with MSPC.

They have a video of how to integrate the two.  

Did you end up solving the issue? 

I took a look at your website and it looks like you added them as two separate simple products?