Let's make comperhensive guides to threshing/hulling seed crops!

    I and probably many others are at a loss for bulk cleaning techniques for cleaning volumes of our beans, grains, squash seeds etc. Can we get a bunch of experts contributing their tips, tricks, and wisdom?  Once we have a lot of information in one place, maybe I can make a wiki out of it.

Plant seeds needing efficient threshing/hulling:
Sunflower
Bean
Buckwheat
Oats
Wheat
Grains in general
Corn
Amaranth
Squash
Sorghum
Chestnut
Acorn
Walnut
Hazelnut
Beech
Techniques for other edible seeds are welcome.

Seconded.

For beans I like to put the dry beans in the hull inside a chicken food bag and stomp on them.  Most pop open and release the beans.  I aim for 90% or better of the beans leaving the pods.  I don't worry about the final 10% because that selectively breeds my bean population into something that threshes easier (I think)