Objects on the Ground Plane /// "bananas on a table"

Hi, I need a little help with Rhino/Grasshopper/Kangaroo

I have a set of objects (meshes, solids, surfaces, polysurfaces).

I want to place them naturally on the ground plane to make a nice rendering,

if I do it manually, it looks weird and not accurate.

(Imagine you model 20 bananas and you want to place them in a fruitbowl or ont he table)

how to do that?

I'm trying to apply them a UnaryForce, but I can't figure out how to do it.

I haven't been able to do this with rhino,

I haven't been able to do this with Grasshopper,

now I'm trying it with Kangaroo,

I hope you can help me out: