Pre-requisites: two handed rocket start!
This one is very similar to the standard rocket start. But obviously, you need to be able to do two diabolos in one hand! You need to hold the sticks in a firm V shape. I do this by putting my thumb between the sticks. The V shape gives you a target to aim the thrown diabolo at. Aim to make the thrown diabolo land between the ends of the sticks, and you should hopefully catch it!