As someone requested on Youtube how the donut-fall was made,
a little more explanation...
As donuts fall as soon I render, I added a barrier, which opens exactly when donuts have to fall.
Besides that, this makes the donuts fall in a better shape. Otherwise they would fall in a straight line,
not shaped like a big donut...
Toystorylab on Vimeo :
Crassitudes (my "Alter Ego") on Youtube: 