Hi,
Bottle of Water!!!
Indeed .. high viscosity oil will made better .. but hey .. in emergency you take what at hand .....
You have all of the pax crowd into the front. Then have them all return to their seats as you recover, if they can do it under the G's.
I was in the crowd time ago .. in a Super Puma ...
10 people rushed forward on the pilot order .... some seconds after take off (bad loading cargo at the rear (was a ****load visible rear the net !)
Moving cargo during flight and no more prob !
That was in Libya ........