Getting ready for that «4G negative dive» 
The ConTrollR engineering department pulled an all-nighter and came up with this solution.
We at ConTrollR would like to take this opportunity to thank you for your valuable input on the matter. We hope you will be satisfied with our efforts.
I got a stainless steel cup holder insert at the boat interior department of Biltema.
Yes, @Hangar200. Boaty stuff, in the SimBox NG!