Well, long story short, you could use an expression like this:
Select all of your rigid objects in the viewport, then in the channelbox, highlight the x,y and z initialSpin attributes, right-click and choose expressions, and paste this into the box:
RigidObjectName|SolverName.initialSpinX = rand(1,2);
RigidObjectName|SolverName.initialSpinY = rand(1,2);
RigidObjectName|SolverName.initialSpinZ = rand(1,2);
Worked for me.....
Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS